C#精髓-- GridView 72般绝技
2010-03-25 11:00
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原文地址：http://www.cnblogs.com/tiger8000/archive/2010/03/23/1692608.html
C#精髓--
GridView 72般绝技
作者：清清月儿
快速预览：
GridView无代码分页排序
GridView选中，编辑，取消，删除
GridView正反双向排序
GridView
和下拉菜单DropDownList结合
GridView和CheckBox结合
鼠标移到GridView某一行时改变该行的背景色方法
一
鼠标移到GridView某一行时改变该行的背景色方法二
GridView实现删除时弹出确认对话框
GridView实现自动
编号
GridView实现自定义时间货币等字符串格式
GridView
实现用“...”代替超长字符串
GridView一般换行与强制换行
GridView显示隐藏某一列
GridView弹出新页面
/弹出新窗口
GridView固定表头(不用javascript只用CSS，2行代码，很好用)
GridView合并表头多重表头无错
完美版（以合并3列3行举例）
GridView突出显示某一单元格（例如金额低于多少，分数不及格等）
GridView加入自动求和求平
均值小计
GridView[b]数据导入Excel/Excel数据读入GridView
[/b]
1.GridView无代码分页排序
：
效果图：
1.AllowSorting
设为True，aspx代码中是AllowSorting="True"；
2.默认1页10条，如果要修改每页条数，修改PageSize即可，
在aspx代码中是PageSize="12"。
3.默认的是单向排序的，右击GridView弹出“属性”，选择AllowSorting为
True即可。
2.GridView选中，编辑，取消，删除：
效果图：
后台代码：
你可以使用sqlhelper,本文没用。代码如下：
using
System;
using System.Data;
using System.Configuration;
using
System.Web;
using System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
//清清月儿http://blog.csdn.net/21aspnet
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon =
"Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
bind();
}
}
protected void GridView1_RowEditing(object sender,
GridViewEditEventArgs e)
{
GridView1.EditIndex =
e.NewEditIndex;
bind();
}
//删除
protected void GridView1_RowDeleting(object
sender, GridViewDeleteEventArgs e)
{
string sqlstr =
"delete from 表 where id='" +
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcon
= new SqlConnection(strCon);
sqlcom = new
SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
bind();
}
//更新
protected void GridView1_RowUpdating(object
sender, GridViewUpdateEventArgs e)
{
sqlcon = new
SqlConnection(strCon);
string sqlstr = "update 表 set 字段1='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim()
+ "',字段2='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim()
+ "',字段3='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim()
+ "' where id='"
+
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom=new SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
}
//取消
protected void
GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
bind();
}
//绑定
public void bind()
{
string sqlstr = "select * from 表";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "表");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "id" };//主键
GridView1.DataBind();
sqlcon.Close();
}
}
前台主要代码：
... ...
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="4"
ForeColor="#333333" GridLines="None"
OnRowDeleting="GridView1_RowDeleting"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit">
<FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White"
/>
<Columns>
<asp:BoundField DataField="身份证号码" HeaderText="用户ID" ReadOnly="True"
/>
<asp:BoundField DataField="姓名"
HeaderText="用户姓名" />
<asp:BoundField DataField="员工性别" HeaderText="性别" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />
<
4000
asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
</Columns>
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
3.GridView正反双向排序：
效果图：点姓名各2次的排序，
点其他也一样可以。
后
台代码：
using System;
using System.Data;
using
System.Configuration;
using System.Collections;
using System.Web;
using
System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public
partial class Default3 : System.Web.UI.Page
{
//清清月儿的博客http://blog.csdn.net/21aspnet
SqlConnection sqlcon;
string strCon = "Data
Source=(local);Database=北风贸易;Uid=sa;Pwd=";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
ViewState["SortOrder"] =
"身份证号码";
ViewState["OrderDire"] = "ASC";
bind();
}
}
protected void
GridView1_Sorting(object sender, GridViewSortEventArgs e)
{
string sPage = e.SortExpression;
if
(ViewState["SortOrder"].ToString() == sPage)
{
if (ViewState["OrderDire"].ToString() == "Desc")
ViewState["OrderDire"] = "ASC";
else
ViewState["OrderDire"] = "Desc";
}
else
{
ViewState["SortOrder"] = e.SortExpression;
}
bind();
}
public void bind()
{
string sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
DataView
view = myds.Tables["飞狐工作室"].DefaultView;
string sort =
(string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"];
view.Sort = sort;
GridView1.DataSource = view;
GridView1.DataBind();
sqlcon.Close();
}
}
前台主要代码：
<asp:GridView
ID="GridView1" runat="server" AllowSorting="True"
AutoGenerateColumns="False"
CellPadding="3"
Font-Size="9pt" OnSorting="GridView1_Sorting" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField
DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />
<asp:BoundField DataField="姓名" HeaderText="用户姓名"
SortExpression="姓名"/>
<asp:BoundField DataField="员工性别" HeaderText="性别"
SortExpression="员工性别"/>
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址"
SortExpression="家庭住址"/>
</Columns>
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
4.GridView和下拉菜单DropDownList结合：
效果图：
后台代码：
using System;
using
System.Data;
using System.Configuration;
using System.Collections;
using
System.Web;
using System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public
partial class Default4 : System.Web.UI.Page
{
SqlConnection
sqlcon;
string strCon = "Data
Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
DropDownList
ddl;
if (!IsPostBack)
{
string
sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new
DataSet();
sqlcon.Open();
myda.Fill(myds,
"飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataBind();
for (int i = 0; i <=
GridView1.Rows.Count - 1; i++)
{
DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];
if (Convert.ToString(mydrv["员工性别"]).Trim() == "True")
{
ddl =
(DropDownList)GridView1.Rows[i].FindControl("DropDownList1");
ddl.SelectedIndex = 0;
}
if
(Convert.ToString(mydrv["员工性别"]).Trim() == "False")
{
ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");
ddl.SelectedIndex = 1;
}
}
sqlcon.Close();
}
}
public SqlDataReader
ddlbind()
{
string sqlstr = "select distinct 员工性别 from
飞狐工作室";
sqlcon = new SqlConnection(strCon);
SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon);
sqlcon.Open();
return sqlcom.ExecuteReader();
}
前台主要代码：
<asp:GridView
ID="GridView1" runat="server" AllowSorting="True"
AutoGenerateColumns="False"
CellPadding="3"
Font-Size="9pt" BackColor="White" BorderColor="#CCCCCC"
BorderStyle="None" BorderWidth="1px">
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField
DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />
<asp:BoundField DataField="姓名" HeaderText="用户姓名"
SortExpression="姓名"/>
<asp:TemplateField HeaderText="员工性别">
<ItemTemplate>
<asp:DropDownList ID="DropDownList1" runat="server"
DataSource='<%# ddlbind()%>' DataValueField="员工性别"
DataTextField="员工性别">
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址"
SortExpression="家庭住址"/>
</Columns>
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
5.GridView和CheckBox结合：
效果图：
后台代码：
using System;
using System.Data;
using
System.Configuration;
using System.Web;
using System.Web.Security;
using
System.Web.UI;
using System.Web.UI.WebControls;
using
System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using
System.Data.SqlClient;
public partial class Default5 : System.Web.UI.Page
{
//
清清月儿http://blog.csdn.net/21aspnet
SqlConnection sqlcon;
string strCon = "Data
Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
bind();
}
}
protected void CheckBox2_CheckedChanged(object sender, EventArgs e)
{
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
{
CheckBox cbox =
(CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
if
(CheckBox2.Checked == true)
{
cbox.Checked = true;
}
else
{
cbox.Checked = false;
}
}
}
protected void Button2_Click(object sender, EventArgs e)
{
sqlcon = new SqlConnection(strCon);
SqlCommand
sqlcom;
for (int i = 0; i <= GridView1.Rows.Count - 1;
i++)
{
CheckBox cbox =
(CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
if
(cbox.Checked == true)
{
string sqlstr = "delete from 飞狐工作室 where
身份证号码='" + GridView1.DataKeys[i].Value + "'";
sqlcom
= new SqlCommand(sqlstr, sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
}
}
bind();
}
protected void
Button1_Click(object sender, EventArgs e)
{
CheckBox2.Checked = false;
for (int i = 0; i <=
GridView1.Rows.Count - 1; i++)
{
CheckBox cbox
= (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
cbox.Checked = false;
}
}
public void bind()
{
string sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new
DataSet();
sqlcon.Open();
myda.Fill(myds,
"tb_Member");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new string[] { "身份证号码" };
GridView1.DataBind();
sqlcon.Close();
}
}
前台主要代码：
<asp:GridView ID="GridView1" runat="server"
AllowSorting="True" AutoGenerateColumns="False"
CellPadding="3" Font-Size="9pt" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="身份证号码" HeaderText="用户ID"
SortExpression="身份证号码" />
<asp:BoundField DataField="姓名" HeaderText="用户姓名"
SortExpression="姓名"/>
1bb8c
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址"
SortExpression="家庭住址"/>
</Columns>
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
<asp:CheckBox ID="CheckBox2" runat="server" AutoPostBack="True"
Font-Size="9pt" OnCheckedChanged="CheckBox2_CheckedChanged"
Text="全选" />
<asp:Button ID="Button1"
runat="server" Font-Size="9pt" Text="取消" OnClick="Button1_Click" />
<asp:Button ID="Button2" runat="server" Font-Size="9pt" Text="删除"
OnClick="Button2_Click" />
6.鼠标移到GridView某一行时改变该行的背景色方法一：
效果图：
做
法：
双击GridView的OnRowDataBound
事件；
在
后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示：
protected void
GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
int i;
//执行循环，保证每条数据都可以更新
for (i = 0; i <
GridView1.Rows.Count; i++)
{
//首先判断是否是数据行
if (e.Row.RowType == DataControlRowType.DataRow)
{
//当鼠标停留时更改背景色
e.Row.Attributes.Add("onmouseover",
"c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");
//当鼠标移开时还原背景色
e.Row.Attributes.Add("onmouseout",
"this.style.backgroundColor=c");
}
}
}
前台代码：
<html xmlns="http://www.w3.org/1999/xhtml
" >
<head
runat="server">
<title>实现鼠标划过改变GridView的行背景色 清清月儿http://blog.csdn.net/21aspnet
</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" DataKeyNames="身份证号码"
DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
CellPadding="3" Font-Size="12px"
OnRowDataBound="GridView1_RowDataBound">
<Columns>
<asp:BoundField DataField="身份证号码"
HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />
<asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名"
/>
<asp:BoundField DataField="家庭住址"
HeaderText="家庭住址" SortExpression="家庭住址" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码"
SortExpression="邮政编码" />
</Columns>
<FooterStyle BackColor="White" ForeColor="#000066" />
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle BackColor="White"
ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
<asp:SqlDataSource
ID="SqlDataSource1" runat="server" ConnectionString="<%$
ConnectionStrings:北风贸易ConnectionString1 %>"
SelectCommand="SELECT top 5 [身份证号码], [姓名], [员工性别], [家庭住址], [邮政编码] FROM
[飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>
</div>
</form>
</body>
</html>
7.鼠标移到GridView某一行时改变该行的背景色方法二：
效果图：
做法：和上面的一样就是代码不同
protected void
GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
//int i;
////执行循环，保证每条数据都可以更新
//for (i = 0; i
< GridView1.Rows.Count; i++)
//{
//
//首先判断是否是数据行
// if (e.Row.RowType ==
DataControlRowType.DataRow)
// {
//
//当鼠标停留时更改背景色
// e.Row.Attributes.Add("onmouseover",
"c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");
// //当鼠标移开时还原背景色
//
e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");
// }
//}
//如果是绑定数据行
if
(e.Row.RowType == DataControlRowType.DataRow)
{
//鼠标经过时，行背景色变
e.Row.Attributes.Add("onmouseover",
"this.style.backgroundColor='#E6F5FA'");
//鼠标移出时，行背景色变
e.Row.Attributes.Add("onmouseout",
"this.style.backgroundColor='#FFFFFF'");
}
}
8.GridView实现删除时弹出确认对话框：
效果图：
实现方法：
双击GridView的OnRowDataBound
事件；
在后台的GridView1_RowDataBound()
方法添加代码，最后代码如下所示：
protected void GridView1_RowDataBound(object
sender, GridViewRowEventArgs e)
{
//如果是绑定数据行
if (e.Row.RowType == DataControlRowType.DataRow)
{
if
(e.Row.RowState == DataControlRowState.Normal || e.Row.RowState ==
DataControlRowState.Alternate)
{
((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick",
"javascript:return confirm('你确认要删除：/"" + e.Row.Cells[1].Text +
"/"吗?')");
}
}
}
9.GridView实现自动编号：
效果图：
实现方法：
双击GridView的OnRowDataBound
事件；
在后台的GridView1_RowDataBound()
方法添加代码，最后代码如下所示：
protected void GridView1_RowDataBound(object
sender, GridViewRowEventArgs e)
{
//如果是绑定数据行 //清清月儿http://blog.csdn.net/21aspnet
if
(e.Row.RowType == DataControlRowType.DataRow)
{
////鼠标经过时，行背景色变
//e.Row.Attributes.Add("onmouseover",
"this.style.backgroundColor='#E6F5FA'");
////鼠标移出时，行背景色变
//e.Row.Attributes.Add("onmouseout",
"this.style.backgroundColor='#FFFFFF'");
////当有编辑列时，避免出错，要加的RowState判断
//if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState ==
DataControlRowState.Alternate)
//{
//
((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick",
"javascript:return confirm('你确认要删除：/"" + e.Row.Cells[1].Text +
"/"吗?')");
//}
}
if (e.Row.RowIndex != -1)
{
int id = e.Row.RowIndex + 1;
e.Row.Cells[0].Text = id.ToString();
}
}
注意这时最好把前台的第一列的表头该为“编号”，因为以前的第一列被“吃掉”了。
<asp:GridView
ID="GridView1" runat="server" AutoGenerateColumns="False"
CellPadding="3" OnRowDeleting="GridView1_RowDeleting"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField
DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
<asp:BoundField DataField="姓名" HeaderText="用户姓名" />
<asp:BoundField DataField="员工性别" HeaderText="性别" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
</Columns>
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
10.GridView实现自定义时间货币等字符串格式：
效果图：
图1-未格式化前
图
2-格式化后
解
决方法：
在asp.net 2.0中，如果要在绑定列中显示比如日期格式等，如果用下面的方法是显示不了的
<asp :BoundField DataField="CreationDate"
DataFormatString="{0:M-dd-yyyy}"
HeaderText="CreationDate" />
主要是由于htmlencode属性默认设置为true,已防止XSS攻击，安全起见而用的，所以，可以有以下两种方法
解决
1、
<asp :GridView ID="GridView1" runat="server">
<columns>
<asp
:BoundField DataField="CreationDate"
DataFormatString="{0:M-dd-yyyy}"
HtmlEncode="false"
HeaderText="CreationDate" />
</columns>
</asp>
将htmlencode设置为false即可
另外的解决方法为，使用模版列
<asp :GridView ID="GridView3" runat="server" >
<columns>
<asp
:TemplateField HeaderText="CreationDate" >
<edititemtemplate>
<asp
:Label ID="Label1" runat="server"
Text='<%# Eval("CreationDate",
"{0:M-dd-yyyy}") %>'>
</asp>
</edititemtemplate>
<itemtemplate>
<asp
:Label ID="Label1" runat="server"
Text=’<%# Bind("CreationDate",
"{0:M-dd-yyyy}") %>'>
</asp>
</itemtemplate>
</asp>
</columns>
</asp>
前台代码：
<asp:GridView
ID="GridView1" runat="server" AutoGenerateColumns="False"
DataKeyNames="身份证号码"
DataSourceID="SqlDataSource1"
AllowSorting="True" BackColor="White" BorderColor="#CCCCCC"
BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px"
OnRowDataBound="GridView1_RowDataBound">
<Columns>
<asp:BoundField DataField="身份证号码"
HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />
<asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名"
/>
<asp:BoundField DataField="邮政编码"
HeaderText="邮政编码" SortExpression="邮政编码" />
<asp:BoundField DataField="出生日期" HeaderText="出生日期"
SortExpression="出生日期" />
<asp:BoundField
DataField="起薪" HeaderText="起薪" SortExpression="起薪" />
</Columns>
<FooterStyle BackColor="White"
ForeColor="#000066" />
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle
BackColor="#669999" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="White" ForeColor="#000066"
HorizontalAlign="Left" />
<HeaderStyle
BackColor="#006699" Font-Bold="True" ForeColor="White" />
</asp:GridView>
<asp:SqlDataSource
ID="SqlDataSource1" runat="server" ConnectionString="<%$
ConnectionStrings:北风贸易ConnectionString1 %>"
SelectCommand="SELECT top 5 [出生日期], [起薪], [身份证号码], [姓名], [家庭住址], [邮政编码]
FROM [飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>
附录-常用格式化公式：
{0:C} 货币；
{0:D4}由0填充
的4个字符宽的字段中显示整数；
{0:000.0}四舍五入小数点保留第几位有效数字；
{0:N2}小数点保留2位有效数字；
{0:N2}% 小数点保留2位有效数字加百分号；
{0:D}长日期；{0:d}短日期；{0:yy-MM-dd}
例如07-3-25；；{0:yyyy-MM-dd} 例如2007-3-25
11.GridView实现用“...”代替超长字符串：
效果图：
解
决方法：数据绑定后过滤每一行即可
for (int i = 0; i <=
GridView1.Rows.Count - 1; i++)
{
DataRowView
mydrv;
string gIntro;
if
(GridView1.PageIndex == 0)
{
mydrv =
myds.Tables["飞狐工作室"].DefaultView[i];//表名
gIntro =
Convert.ToString(mydrv["家庭住址"]);//所要处理的字段
GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
}
else
{
mydrv =
myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];
gIntro = Convert.ToString(mydrv["家庭住址"]);
GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
}
}
调用的方法：
public string SubStr(string sString, int nLeng)
{
if (sString.Length <= nLeng)
{
return
sString;
}
string sNewStr = sString.Substring(0,
nLeng);
sNewStr = sNewStr + "...";
return sNewStr;
}
后台全部代码：
using System;
using System.Data;
using
System.Configuration;
using System.Web;
using
System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon =
"Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
ViewState["SortOrder"] =
"身份证号码";
ViewState["OrderDire"] = "ASC";
bind();
}
}
protected void
GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
bind();
}
protected void GridView1_RowDeleting(object sender,
GridViewDeleteEventArgs e)
{
string sqlstr = "delete
from 飞狐工作室 where 身份证号码='" +
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcon
= new SqlConnection(strCon);
sqlcom = new
SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
bind();
}
protected void GridView1_RowUpdating(object sender,
GridViewUpdateEventArgs e)
{
sqlcon = new
SqlConnection(strCon);
string sqlstr = "update 飞狐工作室 set
姓名='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim()
+ "',家庭住址='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim()
+ "' where 身份证号码='"
+
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom=new SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
}
protected
void GridView1_RowCancelingEdit(object sender,
GridViewCancelEditEventArgs e)
{
GridView1.EditIndex =
-1;
bind();
}
public void bind()
{
string sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "身份证号码" };
GridView1.DataBind();
for
(int i = 0; i <= GridView1.Rows.Count - 1; i++)
{
DataRowView mydrv;
string gIntro;
if
(GridView1.PageIndex == 0)
{
mydrv =
myds.Tables["飞狐工作室"].DefaultView[i];
gIntro =
Convert.ToString(mydrv["家庭住址"]);
GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
}
else
{
mydrv =
myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];
gIntro = Convert.ToString(mydrv["家庭住址"]);
GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
}
}
sqlcon.Close();
}
public string
SubStr(string sString, int nLeng)
{
if (sString.Length
<= nLeng)
{
return sString;
}
string sNewStr = sString.Substring(0, nLeng);
sNewStr =
sNewStr + "...";
return sNewStr;
}
protected
void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
//如果是绑定数据行
if (e.Row.RowType ==
DataControlRowType.DataRow)
{
////鼠标经过时，行背景色变
//e.Row.Attributes.Add("onmouseover",
"this.style.backgroundColor='#E6F5FA'");
////鼠标移出时，行背景色变
//e.Row.Attributes.Add("onmouseout",
"this.style.backgroundColor='#FFFFFF'");
////当有编辑列时，避免出错，要加的RowState判断
//if
(e.Row.RowState == DataControlRowState.Normal || e.Row.RowState ==
DataControlRowState.Alternate)
//{
//
((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick",
"javascript:return confirm('你确认要删除：/"" + e.Row.Cells[1].Text +
"/"吗?')");
//}
}
if (e.Row.RowIndex != -1)
{
int id = e.Row.RowIndex + 1;
e.Row.Cells[0].Text =
id.ToString();
}
}
}
11.GridView一般换行与强制换行：
效果图：
首
先设置<asp:BoundField DataField="家庭住址" HeaderText="家庭住址"
ItemStyle-Width="100" />
gridview里有一列绑定的数据很长，显示的时候在一行里面显示，页面拉得很宽。
原
因是连续英文段为一个整体导致的，在RowDataBound中添加上了一句e.Row.Cells[2].Style.Add("word-
break", "break-all")就可以。
如果要给所有的列增加此属性：
protected void Page_Load(object
sender, EventArgs e)
{
//正常换行
GridView1.Attributes.Add("style",
"word-break:keep-all;word-wrap:normal");
//下面这行是自动换行
GridView1.Attributes.Add("style",
"word-break:break-all;word-wrap:break-word");
if
(!IsPostBack)
{
bind();//调用数据绑定即可
}
}
总之
：善用CSS的word-break:break-all;word-wrap:break-word
属
性即可，这个属性是通用的对于顽固的南换行问题都可以解决，不局限
于GridView。
12.GridView显示隐藏某一列：
本方案为月儿
独创
，不同于网上其他方式，我觉得用一个CheckBox更人性化
，
这样可以隐藏不必要的列，让用户自己选择需要出现的列，在处理多列时这是一个很好的解决方案！
效果图：
图1-开始
图
2-点击显示的CheckBox后
解决方案：
public void bind()
{
string sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "身份证号码" };
GridView1.DataBind();
sqlcon.Close();
GridView1.Columns[3].Visible =
false;//一开始隐藏
CheckBox1.Checked = false;//如果不这样后面的代码会把他True
}
双击CheckBox1，在CheckedChanged方法里写上代码，最后代码如下：
protected
void CheckBox1_CheckedChanged(object sender, EventArgs e)
{
GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;
Response.Write("GridView1的第4列现在的显示隐藏状态
是："+GridView1.Columns[3].Visible.ToString());
}
注意：CheckBox1的AutoPostBack要True
！
后台全部代码如下：
using System;
using System.Data;
using
System.Configuration;
using System.Web;
using System.Web.Security;
using
System.Web.UI;
using System.Web.UI.WebControls;
using
System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using
System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon =
"Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
ViewState["SortOrder"] =
"身份证号码";
ViewState["OrderDire"] = "ASC";
bind();
}
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs
e)
{
GridView1.EditIndex = e.NewEditIndex;
bind();
}
protected void GridView1_RowDeleting(object
sender, GridViewDeleteEventArgs e)
{
string sqlstr =
"delete from 飞狐工作室 where 身份证号码='" +
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcon
= new SqlConnection(strCon);
sqlcom = new
SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
bind();
}
protected void GridView1_RowUpdating(object sender,
GridViewUpdateEventArgs e)
{
sqlcon = new
SqlConnection(strCon);
string sqlstr = "update 飞狐工作室 set
姓名='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim()
+ "',家庭住址='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim()
+ "' where 身份证号码='"
+
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom=new SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
}
protected
void GridView1_RowCancelingEdit(object sender,
GridViewCancelEditEventArgs e)
{
GridView1.EditIndex =
-1;
bind();
}
public void bind()
{
string sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "身份证号码" };
GridView1.DataBind();
sqlcon.Close();
GridView1.Columns[3].Visible = false;
CheckBox1.Checked = false;
}
protected void
CheckBox1_CheckedChanged(object sender, EventArgs e)
{
GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;
Response.Write("GridView1的第4列现在的显示隐藏状态
是："+GridView1.Columns[3].Visible.ToString());
}
}
前
台代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
">
<html xmlns="http://www.w3.org/1999/xhtml
"
>
<head runat="server">
<title>GridView显示隐藏列
清清月儿http://blog.csdn.net/21aspnet
</title>
</head>
<body
style="font-size=12px">
<form id="form1"
runat="server">
<div>
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowDeleting="GridView1_RowDeleting"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" >
<FooterStyle
BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField
DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
<asp:BoundField DataField="姓名" HeaderText="用户姓名" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码"
SortExpression="邮政编码" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
</Columns>
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
<asp:CheckBox ID="CheckBox1" runat="server" AutoPostBack="True"
Font-Size="12px"
OnCheckedChanged="CheckBox1_CheckedChanged" Text="显示隐藏家庭住址"
/></div>
</form>
</body>
</html>
13.GridView弹出新页面/弹出制定大小位置新窗口：
效果图：
方案一：简单的方法，新窗口不固定大小
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowDeleting="GridView1_RowDeleting"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" >
<FooterStyle
BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField
DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码"
SortExpression="邮政编码" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:HyperLinkField HeaderText="姓名" Text="姓名" DataNavigateUrlFields
="
姓名" DataNavigateUrlFormatString="Default6.aspx?GoodsID={0}"
Target="mainframe" NavigateUrl="~/Default6.aspx" DataTextField="姓名" >
</asp:HyperLinkField>
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
</Columns>
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
DataNavigateUrlFields
是链接的字段
名，DataNavigateUrlFormatString是路径。
方案二：精确控制弹出窗口大小位置
<asp:HyperLinkColumn
DataNavigateUrlField="EmployeeID"
DataNavigateUrlFormatString="javascript:varwin=window.open('detail.aspx?ID={0}',null,'width=300,height=200');window.Close();"
DataTextField="LastName"
HeaderText="LastName"></asp:HyperLinkColumn>
使用的是结合javascript的window.open方法，关于window.open的参数网上有很多帖子，本站也有许多参考
弹出窗口大全
http://blog.csdn.net/21aspnet/archive/2004/10/25/150231.aspx
即可！
14.GridView固定表头(不用javascript只用CSS!，很好用)
：
效果图：
代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML
1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
">
<html xmlns="http://www.w3.org/1999/xhtml
"
>
<head runat="server">
<title>GridView固定表头
清清月儿http://blog.csdn.net/21aspnet
</title>
<style>
.Freezing
{
position:relative ;
table-layout:fixed;
top:expression(this.offsetParent.scrollTop);
z-index: 10;
}
.Freezing
th{text-overflow:ellipsis;overflow:hidden;white-space:
nowrap;padding:2px;}
</style>
</head>
<body
style="font-size=12px">
<form id="form1"
runat="server">
<div style="overflow-y: scroll; height:
200px;width:300px" id="dvBody">
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowDeleting="GridView1_RowDeleting"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" OnRowCreated="GridView1_RowCreated" >
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField
DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码"
SortExpression="邮政编码" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:BoundField DataField="姓名" HeaderText="姓名" />
</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left"
CssClass="ms-formlabel DataGridFixedHeader"/>
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"
/
>
</asp:GridView>
</div>
</form>
</body>
</html>
用法：CSS设如上的样式，HeaderStyle加CssClass="Freezing
，
套住GridView的Div设置高度宽度 <div style="overflow-y: scroll; height:
200px;width:200px" >
15.GridView合并表头多重表头无错完美版（以合并3列3行举例）
效果图：
后台代码：
using System;
using
System.Data;
using System.Configuration;
using System.Web;
using
System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using
System.Drawing;
public partial class _Default : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon =
"Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
bind();
}
}
protected void GridView1_RowEditing(object sender,
GridViewEditEventArgs e)
{
GridView1.EditIndex =
e.NewEditIndex;
bind();
}
protected void
GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
sqlcon = new SqlConnection(strCon);
string sqlstr = "update
飞狐工作室 set 姓名='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim()
+ "',家庭住址='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim()
+ "' where 身份证号码='"
+
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom=new SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
}
protected
void GridView1_RowCancelingEdit(object sender,
GridViewCancelEditEventArgs e)
{
GridView1.EditIndex =
-1;
bind();
}
public void bind()
{
string sqlstr = "select top 10 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "身份证号码" };
GridView1.DataBind();
sqlcon.Close();
}
//这里就是解决方案
protected void GridView1_RowCreated(object sender,
GridViewRowEventArgs e)
{
switch
(e.Row.RowType)
{
case
DataControlRowType.Header:
//第一行表头
TableCellCollection tcHeader = e.Row.Cells;
tcHeader.Clear();
tcHeader.Add(new
TableHeaderCell());
tcHeader[0].Attributes.Add("rowspan", "3"); //跨Row
tcHeader[0].Attributes.Add("bgcolor", "white");
tcHeader[0].Text = "";
tcHeader.Add(new
TableHeaderCell());
//tcHeader[1].Attributes.Add("bgcolor", "Red");
tcHeader[1].Attributes.Add("colspan", "6"); //跨Column
tcHeader[1].Text = "全部信息</th></tr><tr>";
//第二行表头
tcHeader.Add(new
TableHeaderCell());
tcHeader[2].Attributes.Add("bgcolor", "DarkSeaGreen");
tcHeader[2].Text = "身份证号码";
tcHeader.Add(new
TableHeaderCell());
tcHeader[3].Attributes.Add("bgcolor", "LightSteelBlue");
tcHeader[3].Attributes.Add("colspan", "2");
tcHeader[3].Text = "基本信息";
tcHeader.Add(new
TableHeaderCell());
tcHeader[4].Attributes.Add("bgcolor", "DarkSeaGreen");
tcHeader[4].Text = "福利";
tcHeader.Add(new
TableHeaderCell());
tcHeader[5].Attributes.Add("bgcolor", "LightSteelBlue");
tcHeader[5].Attributes.Add("colspan", "2");
tcHeader[5].Text = "联系方式</th></tr><tr>";
//第三行表头
tcHeader.Add(new
TableHeaderCell());
tcHeader[6].Attributes.Add("bgcolor", "Khaki");
tcHeader[6].Text = "身份证号码";
tcHeader.Add(new
TableHeaderCell());
tcHeader[7].Attributes.Add("bgcolor", "Khaki");
tcHeader[7].Text = "姓名";
tcHeader.Add(new
TableHeaderCell());
tcHeader[8].Attributes.Add("bgcolor", "Khaki");
tcHeader[8].Text = "出生日期";
tcHeader.Add(new
TableHeaderCell());
tcHeader[9].Attributes.Add("bgcolor", "Khaki");
tcHeader[9].Text = "薪水";
tcHeader.Add(new
TableHeaderCell());
tcHeader[10].Attributes.Add("bgcolor", "Khaki");
tcHeader[10].Text = "家庭住址";
tcHeader.Add(new
TableHeaderCell());
tcHeader[11].Attributes.Add("bgcolor", "Khaki");
tcHeader[11].Text = "邮政编码";
break;
}
}
}
前台：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
">
<html xmlns="http://www.w3.org/1999/xhtml
"
>
<head runat="server">
<title>GridView合并多重表头表头 清清月儿http://blog.csdn.net/21aspnet
</title>
</head>
<body
>
<form id="form1" runat="server">
<div >
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" OnRowCreated="GridView1_RowCreated" >
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:CommandField
HeaderText="编辑" ShowEditButton="True" />
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True"
/>
<asp:BoundField DataField="姓名"
HeaderText="姓名" />
<asp:BoundField
DataField="出生日期" HeaderText="邮政编码" />
<asp:BoundField DataField="起薪" HeaderText="起薪" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left"
CssClass="ms-formlabel DataGridFixedHeader"/>
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
</div>
</form>
</body>
</html>
16.GridView突出显示某一单元格（例如金额低于多少，分数不及格等）
效果图：
解决方案：主要是绑定后过滤
GridView1.DataBind();
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
{
DataRowView mydrv =
myds.Tables["飞狐工作室"].DefaultView[i];
string score =
Convert.ToString(mydrv["起薪"]);
if
(Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等
{
GridView1.Rows[i].Cells[4].BackColor =
System.Drawing.Color.Red;
}
}
sqlcon.Close();
全部后台代码：
using System;
using System.Data;
using System.Configuration;
using
System.Web;
using System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using
System.Drawing;
public partial class Default7 : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon =
"Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
bind();
}
}
protected void GridView1_RowEditing(object
sender, GridViewEditEventArgs e)
{
GridView1.EditIndex
= e.NewEditIndex;
bind();
}
protected void
GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
sqlcon = new SqlConnection(strCon);
string sqlstr = "update
飞狐工作室 set 姓名='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim()
+ "',家庭住址='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim()
+ "' where 身份证号码='"
+
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom
= new SqlCommand(sqlstr, sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
}
protected
void GridView1_RowCancelingEdit(object sender,
GridViewCancelEditEventArgs e)
{
GridView1.EditIndex =
-1;
bind();
}
public void bind()
{
string sqlstr = "select top 10 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "身份证号码" };
GridView1.DataBind();
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
{
DataRowView mydrv =
myds.Tables["飞狐工作室"].DefaultView[i];
string score =
Convert.ToString(mydrv["起薪"]);
if
(Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能
ToInt32等等
{
GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;
}
}
sqlcon.Close();
}
}
前台代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
">
<html xmlns="http://www.w3.org/1999/xhtml
"
>
<head id="Head1" runat="server">
<title>GridView突出显示某一单元格 清清月儿http://blog.csdn.net/21aspnet
</title>
</head>
<body
>
<form id="form1" runat="server">
<div >
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" >
<FooterStyle
BackColor="White" ForeColor="#000066" />
<Columns>
<asp:CommandField
HeaderText="编辑" ShowEditButton="True" />
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True"
/>
<asp:BoundField DataField="姓名"
HeaderText="姓名" />
<asp:BoundField
DataField="出生日期" HeaderText="邮政编码" />
<asp:BoundField DataField="起薪" HeaderText="起薪"
DataFormatString="{0:C}" HtmlEncode="false"/>
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left"
CssClass="ms-formlabel DataGridFixedHeader"/>
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
</div>
</form>
</body>
</html>
17.GridView加入自动求和求平均值小计
效果图：
解
决方案：
private double sum =
0;//取指定列的数据和，你要根据具体情况对待可能你要处理的是int
protected void
GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowIndex >= 0)
{
sum
+= Convert.ToDouble(e.Row.Cells[6].Text);
}
else
if (e.Row.RowType == DataControlRowType.Footer)
{
e.Row.Cells[5].Text = "总薪水为：";
e.Row.Cells[6].Text =
sum.ToString();
e.Row.Cells[3].Text = "平均薪水为：";
e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();
}
}
后台全部代码：
using System;
using System.Data;
using
System.Configuration;
using System.Web;
using
System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using
System.Drawing;
public partial class Default7 : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon =
"Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
bind();
}
}
protected void GridView1_RowEditing(object
sender, GridViewEditEventArgs e)
{
GridView1.EditIndex
= e.NewEditIndex;
bind();
}
protected void
GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
sqlcon = new SqlConnection(strCon);
string sqlstr = "update
飞狐工作室 set 姓名='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim()
+ "',家庭住址='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim()
+ "' where 身份证号码='"
+
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom
= new SqlCommand(sqlstr, sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
}
protected
void GridView1_RowCancelingEdit(object sender,
GridViewCancelEditEventArgs e)
{
GridView1.EditIndex =
-1;
bind();
}
public void bind()
{
string sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "身份证号码" };
GridView1.DataBind();
sqlcon.Close();
}
private double sum = 0;//取指定列的数据和
protected void GridView1_RowDataBound(object sender,
GridViewRowEventArgs e)
{
if
(e.Row.RowIndex >= 0)
{
sum +=
Convert.ToDouble(e.Row.Cells[6].Text);
}
else if
(e.Row.RowType == DataControlRowType.Footer)
{
e.Row.Cells[5].Text = "总薪水为：";
e.Row.Cells[6].Text =
sum.ToString();
e.Row.Cells[3].Text = "平均薪水为：";
e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();
}
}
}
前台：唯一的花头就是设置ShowFooter="True"
，否则默认表头为隐藏
的！
<asp:GridView ID="GridView1"
runat="server" AutoGenerateColumns="False" CellPadding="3"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" OnRowDataBound="GridView1_RowDataBound"
ShowFooter="True" >
<FooterStyle
BackColor="White" ForeColor="#000066" />
<Columns>
<asp:CommandField
HeaderText="编辑" ShowEditButton="True" />
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True"
/>
<asp:BoundField DataField="姓名"
HeaderText="姓名" />
<asp:BoundField
DataField="出生日期" HeaderText="邮政编码" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
<asp:BoundField DataField="起薪" HeaderText="起薪" />
</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left"
CssClass="ms-formlabel DataGridFixedHeader"/>
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
18.GridView
数据导入Excel/Excel数据
读入GridView
效果图：
解决方案：
页面增加一个按钮，单击事件添加如下方法：
protected void
Button1_Click(object sender, EventArgs e)
{
Export("application/ms-excel", "学生成绩报表.xls");
}
private void Export(string FileType, string FileName)
{
Response.Charset = "GB2312";
Response.ContentEncoding =
System.Text.Encoding.UTF7;
Response.AppendHeader("Content-Disposition", "attachment;filename=" +
HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
Response.ContentType = FileType;
this.EnableViewState =
false;
StringWriter tw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(tw);
GridView1.RenderControl(hw);
Response.Write(tw.ToString());
Response.End();
}
//如果没有下面方法会报错类
型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内
public
override void VerifyRenderingInServerForm(Control control)
{
}
还有由于是文件操作所以要引入名称空间IO和Text
后台代码：
using System;
using System.Data;
using
System.Configuration;
using System.Web;
using
System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using
System.Drawing;
using System.IO;
using System.Text;
public
partial class Default7 : System.Web.UI.Page
{
SqlConnection
sqlcon;
SqlCommand sqlcom;
string strCon = "Data
Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
bind();
}
}
public void bind()
{
string sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "身份证号码" };
GridView1.DataBind();
sqlcon.Close();
}
protected void Button1_Click(object sender, EventArgs e)
{
Export("application/ms-excel", "学生成绩报表.xls");
}
private void Export(string FileType, string FileName)
{
Response.Charset = "GB2312";
Response.ContentEncoding =
System.Text.Encoding.UTF7;
Response.AppendHeader("Content-Disposition", "attachment;filename=" +
HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
Response.ContentType = FileType;
this.EnableViewState =
false;
StringWriter tw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(tw);
GridView1.RenderControl(hw);
Response.Write(tw.ToString());
Response.End();
}
public override void
VerifyRenderingInServerForm(Control control)
{
}
}
前台
：
<asp:GridView ID="GridView1"
runat="server" AutoGenerateColumns="False" CellPadding="3"
BackColor="White" BorderColor="#CCCCCC" BorderStyle="None"
BorderWidth="1px" Font-Size="12px" >
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField
DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
<asp:BoundField DataField="姓名" HeaderText="姓名" />
<asp:BoundField DataField="出生日期" HeaderText="邮政编码" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
<asp:BoundField DataField="起薪" HeaderText="起薪" />
</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left"
CssClass="ms-formlabel DataGridFixedHeader"/>
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click"
Text="导出" />
读取Excel数据的代码
：这个很简单的
private DataSet
CreateDataSource()
{
string strCon;
strCon =
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" +
Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";
OleDbConnection olecon = new OleDbConnection(strCon);
OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]",
strCon);
DataSet myds = new DataSet();
myda.Fill(myds);
return myds;
}
protected void
Button1_Click(object sender, EventArgs e)
{
GridView1.DataSource = CreateDataSource();
GridView1.DataBind();
}
由于时间关系，这个文章先到此。有时间再写，其实还有很多技巧，不过我觉得如果能融汇贯通应该可以举一反三
。
C#精髓--
GridView 72般绝技
作者：清清月儿
快速预览：
GridView无代码分页排序
GridView选中，编辑，取消，删除
GridView正反双向排序
GridView
和下拉菜单DropDownList结合
GridView和CheckBox结合
鼠标移到GridView某一行时改变该行的背景色方法
一
鼠标移到GridView某一行时改变该行的背景色方法二
GridView实现删除时弹出确认对话框
GridView实现自动
编号
GridView实现自定义时间货币等字符串格式
GridView
实现用“...”代替超长字符串
GridView一般换行与强制换行
GridView显示隐藏某一列
GridView弹出新页面
/弹出新窗口
GridView固定表头(不用javascript只用CSS，2行代码，很好用)
GridView合并表头多重表头无错
完美版（以合并3列3行举例）
GridView突出显示某一单元格（例如金额低于多少，分数不及格等）
GridView加入自动求和求平
均值小计
GridView[b]数据导入Excel/Excel数据读入GridView
[/b]
1.GridView无代码分页排序
：
效果图：
1.AllowSorting
设为True，aspx代码中是AllowSorting="True"；
2.默认1页10条，如果要修改每页条数，修改PageSize即可，
在aspx代码中是PageSize="12"。
3.默认的是单向排序的，右击GridView弹出“属性”，选择AllowSorting为
True即可。
2.GridView选中，编辑，取消，删除：
效果图：
后台代码：
你可以使用sqlhelper,本文没用。代码如下：
using
System;
using System.Data;
using System.Configuration;
using
System.Web;
using System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
//清清月儿http://blog.csdn.net/21aspnet
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon =
"Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
bind();
}
}
protected void GridView1_RowEditing(object sender,
GridViewEditEventArgs e)
{
GridView1.EditIndex =
e.NewEditIndex;
bind();
}
//删除
protected void GridView1_RowDeleting(object
sender, GridViewDeleteEventArgs e)
{
string sqlstr =
"delete from 表 where id='" +
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcon
= new SqlConnection(strCon);
sqlcom = new
SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
bind();
}
//更新
protected void GridView1_RowUpdating(object
sender, GridViewUpdateEventArgs e)
{
sqlcon = new
SqlConnection(strCon);
string sqlstr = "update 表 set 字段1='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim()
+ "',字段2='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim()
+ "',字段3='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim()
+ "' where id='"
+
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom=new SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
}
//取消
protected void
GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
bind();
}
//绑定
public void bind()
{
string sqlstr = "select * from 表";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "表");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "id" };//主键
GridView1.DataBind();
sqlcon.Close();
}
}
前台主要代码：
... ...
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="4"
ForeColor="#333333" GridLines="None"
OnRowDeleting="GridView1_RowDeleting"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit">
<FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White"
/>
<Columns>
<asp:BoundField DataField="身份证号码" HeaderText="用户ID" ReadOnly="True"
/>
<asp:BoundField DataField="姓名"
HeaderText="用户姓名" />
<asp:BoundField DataField="员工性别" HeaderText="性别" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />
<
4000
asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
</Columns>
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
3.GridView正反双向排序：
效果图：点姓名各2次的排序，
点其他也一样可以。
后
台代码：
using System;
using System.Data;
using
System.Configuration;
using System.Collections;
using System.Web;
using
System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public
partial class Default3 : System.Web.UI.Page
{
//清清月儿的博客http://blog.csdn.net/21aspnet
SqlConnection sqlcon;
string strCon = "Data
Source=(local);Database=北风贸易;Uid=sa;Pwd=";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
ViewState["SortOrder"] =
"身份证号码";
ViewState["OrderDire"] = "ASC";
bind();
}
}
protected void
GridView1_Sorting(object sender, GridViewSortEventArgs e)
{
string sPage = e.SortExpression;
if
(ViewState["SortOrder"].ToString() == sPage)
{
if (ViewState["OrderDire"].ToString() == "Desc")
ViewState["OrderDire"] = "ASC";
else
ViewState["OrderDire"] = "Desc";
}
else
{
ViewState["SortOrder"] = e.SortExpression;
}
bind();
}
public void bind()
{
string sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
DataView
view = myds.Tables["飞狐工作室"].DefaultView;
string sort =
(string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"];
view.Sort = sort;
GridView1.DataSource = view;
GridView1.DataBind();
sqlcon.Close();
}
}
前台主要代码：
<asp:GridView
ID="GridView1" runat="server" AllowSorting="True"
AutoGenerateColumns="False"
CellPadding="3"
Font-Size="9pt" OnSorting="GridView1_Sorting" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField
DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />
<asp:BoundField DataField="姓名" HeaderText="用户姓名"
SortExpression="姓名"/>
<asp:BoundField DataField="员工性别" HeaderText="性别"
SortExpression="员工性别"/>
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址"
SortExpression="家庭住址"/>
</Columns>
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
4.GridView和下拉菜单DropDownList结合：
效果图：
后台代码：
using System;
using
System.Data;
using System.Configuration;
using System.Collections;
using
System.Web;
using System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public
partial class Default4 : System.Web.UI.Page
{
SqlConnection
sqlcon;
string strCon = "Data
Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
DropDownList
ddl;
if (!IsPostBack)
{
string
sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new
DataSet();
sqlcon.Open();
myda.Fill(myds,
"飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataBind();
for (int i = 0; i <=
GridView1.Rows.Count - 1; i++)
{
DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];
if (Convert.ToString(mydrv["员工性别"]).Trim() == "True")
{
ddl =
(DropDownList)GridView1.Rows[i].FindControl("DropDownList1");
ddl.SelectedIndex = 0;
}
if
(Convert.ToString(mydrv["员工性别"]).Trim() == "False")
{
ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");
ddl.SelectedIndex = 1;
}
}
sqlcon.Close();
}
}
public SqlDataReader
ddlbind()
{
string sqlstr = "select distinct 员工性别 from
飞狐工作室";
sqlcon = new SqlConnection(strCon);
SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon);
sqlcon.Open();
return sqlcom.ExecuteReader();
}
前台主要代码：
<asp:GridView
ID="GridView1" runat="server" AllowSorting="True"
AutoGenerateColumns="False"
CellPadding="3"
Font-Size="9pt" BackColor="White" BorderColor="#CCCCCC"
BorderStyle="None" BorderWidth="1px">
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField
DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />
<asp:BoundField DataField="姓名" HeaderText="用户姓名"
SortExpression="姓名"/>
<asp:TemplateField HeaderText="员工性别">
<ItemTemplate>
<asp:DropDownList ID="DropDownList1" runat="server"
DataSource='<%# ddlbind()%>' DataValueField="员工性别"
DataTextField="员工性别">
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址"
SortExpression="家庭住址"/>
</Columns>
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
5.GridView和CheckBox结合：
效果图：
后台代码：
using System;
using System.Data;
using
System.Configuration;
using System.Web;
using System.Web.Security;
using
System.Web.UI;
using System.Web.UI.WebControls;
using
System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using
System.Data.SqlClient;
public partial class Default5 : System.Web.UI.Page
{
//
清清月儿http://blog.csdn.net/21aspnet
SqlConnection sqlcon;
string strCon = "Data
Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
bind();
}
}
protected void CheckBox2_CheckedChanged(object sender, EventArgs e)
{
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
{
CheckBox cbox =
(CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
if
(CheckBox2.Checked == true)
{
cbox.Checked = true;
}
else
{
cbox.Checked = false;
}
}
}
protected void Button2_Click(object sender, EventArgs e)
{
sqlcon = new SqlConnection(strCon);
SqlCommand
sqlcom;
for (int i = 0; i <= GridView1.Rows.Count - 1;
i++)
{
CheckBox cbox =
(CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
if
(cbox.Checked == true)
{
string sqlstr = "delete from 飞狐工作室 where
身份证号码='" + GridView1.DataKeys[i].Value + "'";
sqlcom
= new SqlCommand(sqlstr, sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
}
}
bind();
}
protected void
Button1_Click(object sender, EventArgs e)
{
CheckBox2.Checked = false;
for (int i = 0; i <=
GridView1.Rows.Count - 1; i++)
{
CheckBox cbox
= (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
cbox.Checked = false;
}
}
public void bind()
{
string sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new
DataSet();
sqlcon.Open();
myda.Fill(myds,
"tb_Member");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new string[] { "身份证号码" };
GridView1.DataBind();
sqlcon.Close();
}
}
前台主要代码：
<asp:GridView ID="GridView1" runat="server"
AllowSorting="True" AutoGenerateColumns="False"
CellPadding="3" Font-Size="9pt" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="身份证号码" HeaderText="用户ID"
SortExpression="身份证号码" />
<asp:BoundField DataField="姓名" HeaderText="用户姓名"
SortExpression="姓名"/>
1bb8c
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址"
SortExpression="家庭住址"/>
</Columns>
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
<asp:CheckBox ID="CheckBox2" runat="server" AutoPostBack="True"
Font-Size="9pt" OnCheckedChanged="CheckBox2_CheckedChanged"
Text="全选" />
<asp:Button ID="Button1"
runat="server" Font-Size="9pt" Text="取消" OnClick="Button1_Click" />
<asp:Button ID="Button2" runat="server" Font-Size="9pt" Text="删除"
OnClick="Button2_Click" />
6.鼠标移到GridView某一行时改变该行的背景色方法一：
效果图：
做
法：
双击GridView的OnRowDataBound
事件；
在
后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示：
protected void
GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
int i;
//执行循环，保证每条数据都可以更新
for (i = 0; i <
GridView1.Rows.Count; i++)
{
//首先判断是否是数据行
if (e.Row.RowType == DataControlRowType.DataRow)
{
//当鼠标停留时更改背景色
e.Row.Attributes.Add("onmouseover",
"c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");
//当鼠标移开时还原背景色
e.Row.Attributes.Add("onmouseout",
"this.style.backgroundColor=c");
}
}
}
前台代码：
<html xmlns="http://www.w3.org/1999/xhtml
" >
<head
runat="server">
<title>实现鼠标划过改变GridView的行背景色 清清月儿http://blog.csdn.net/21aspnet
</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" DataKeyNames="身份证号码"
DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
CellPadding="3" Font-Size="12px"
OnRowDataBound="GridView1_RowDataBound">
<Columns>
<asp:BoundField DataField="身份证号码"
HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />
<asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名"
/>
<asp:BoundField DataField="家庭住址"
HeaderText="家庭住址" SortExpression="家庭住址" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码"
SortExpression="邮政编码" />
</Columns>
<FooterStyle BackColor="White" ForeColor="#000066" />
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle BackColor="White"
ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
<asp:SqlDataSource
ID="SqlDataSource1" runat="server" ConnectionString="<%$
ConnectionStrings:北风贸易ConnectionString1 %>"
SelectCommand="SELECT top 5 [身份证号码], [姓名], [员工性别], [家庭住址], [邮政编码] FROM
[飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>
</div>
</form>
</body>
</html>
7.鼠标移到GridView某一行时改变该行的背景色方法二：
效果图：
做法：和上面的一样就是代码不同
protected void
GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
//int i;
////执行循环，保证每条数据都可以更新
//for (i = 0; i
< GridView1.Rows.Count; i++)
//{
//
//首先判断是否是数据行
// if (e.Row.RowType ==
DataControlRowType.DataRow)
// {
//
//当鼠标停留时更改背景色
// e.Row.Attributes.Add("onmouseover",
"c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");
// //当鼠标移开时还原背景色
//
e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");
// }
//}
//如果是绑定数据行
if
(e.Row.RowType == DataControlRowType.DataRow)
{
//鼠标经过时，行背景色变
e.Row.Attributes.Add("onmouseover",
"this.style.backgroundColor='#E6F5FA'");
//鼠标移出时，行背景色变
e.Row.Attributes.Add("onmouseout",
"this.style.backgroundColor='#FFFFFF'");
}
}
8.GridView实现删除时弹出确认对话框：
效果图：
实现方法：
双击GridView的OnRowDataBound
事件；
在后台的GridView1_RowDataBound()
方法添加代码，最后代码如下所示：
protected void GridView1_RowDataBound(object
sender, GridViewRowEventArgs e)
{
//如果是绑定数据行
if (e.Row.RowType == DataControlRowType.DataRow)
{
if
(e.Row.RowState == DataControlRowState.Normal || e.Row.RowState ==
DataControlRowState.Alternate)
{
((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick",
"javascript:return confirm('你确认要删除：/"" + e.Row.Cells[1].Text +
"/"吗?')");
}
}
}
9.GridView实现自动编号：
效果图：
实现方法：
双击GridView的OnRowDataBound
事件；
在后台的GridView1_RowDataBound()
方法添加代码，最后代码如下所示：
protected void GridView1_RowDataBound(object
sender, GridViewRowEventArgs e)
{
//如果是绑定数据行 //清清月儿http://blog.csdn.net/21aspnet
if
(e.Row.RowType == DataControlRowType.DataRow)
{
////鼠标经过时，行背景色变
//e.Row.Attributes.Add("onmouseover",
"this.style.backgroundColor='#E6F5FA'");
////鼠标移出时，行背景色变
//e.Row.Attributes.Add("onmouseout",
"this.style.backgroundColor='#FFFFFF'");
////当有编辑列时，避免出错，要加的RowState判断
//if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState ==
DataControlRowState.Alternate)
//{
//
((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick",
"javascript:return confirm('你确认要删除：/"" + e.Row.Cells[1].Text +
"/"吗?')");
//}
}
if (e.Row.RowIndex != -1)
{
int id = e.Row.RowIndex + 1;
e.Row.Cells[0].Text = id.ToString();
}
}
注意这时最好把前台的第一列的表头该为“编号”，因为以前的第一列被“吃掉”了。
<asp:GridView
ID="GridView1" runat="server" AutoGenerateColumns="False"
CellPadding="3" OnRowDeleting="GridView1_RowDeleting"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField
DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
<asp:BoundField DataField="姓名" HeaderText="用户姓名" />
<asp:BoundField DataField="员工性别" HeaderText="性别" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
</Columns>
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
10.GridView实现自定义时间货币等字符串格式：
效果图：
图1-未格式化前
图
2-格式化后
解
决方法：
在asp.net 2.0中，如果要在绑定列中显示比如日期格式等，如果用下面的方法是显示不了的
<asp :BoundField DataField="CreationDate"
DataFormatString="{0:M-dd-yyyy}"
HeaderText="CreationDate" />
主要是由于htmlencode属性默认设置为true,已防止XSS攻击，安全起见而用的，所以，可以有以下两种方法
解决
1、
<asp :GridView ID="GridView1" runat="server">
<columns>
<asp
:BoundField DataField="CreationDate"
DataFormatString="{0:M-dd-yyyy}"
HtmlEncode="false"
HeaderText="CreationDate" />
</columns>
</asp>
将htmlencode设置为false即可
另外的解决方法为，使用模版列
<asp :GridView ID="GridView3" runat="server" >
<columns>
<asp
:TemplateField HeaderText="CreationDate" >
<edititemtemplate>
<asp
:Label ID="Label1" runat="server"
Text='<%# Eval("CreationDate",
"{0:M-dd-yyyy}") %>'>
</asp>
</edititemtemplate>
<itemtemplate>
<asp
:Label ID="Label1" runat="server"
Text=’<%# Bind("CreationDate",
"{0:M-dd-yyyy}") %>'>
</asp>
</itemtemplate>
</asp>
</columns>
</asp>
前台代码：
<asp:GridView
ID="GridView1" runat="server" AutoGenerateColumns="False"
DataKeyNames="身份证号码"
DataSourceID="SqlDataSource1"
AllowSorting="True" BackColor="White" BorderColor="#CCCCCC"
BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px"
OnRowDataBound="GridView1_RowDataBound">
<Columns>
<asp:BoundField DataField="身份证号码"
HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />
<asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名"
/>
<asp:BoundField DataField="邮政编码"
HeaderText="邮政编码" SortExpression="邮政编码" />
<asp:BoundField DataField="出生日期" HeaderText="出生日期"
SortExpression="出生日期" />
<asp:BoundField
DataField="起薪" HeaderText="起薪" SortExpression="起薪" />
</Columns>
<FooterStyle BackColor="White"
ForeColor="#000066" />
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle
BackColor="#669999" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="White" ForeColor="#000066"
HorizontalAlign="Left" />
<HeaderStyle
BackColor="#006699" Font-Bold="True" ForeColor="White" />
</asp:GridView>
<asp:SqlDataSource
ID="SqlDataSource1" runat="server" ConnectionString="<%$
ConnectionStrings:北风贸易ConnectionString1 %>"
SelectCommand="SELECT top 5 [出生日期], [起薪], [身份证号码], [姓名], [家庭住址], [邮政编码]
FROM [飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>
附录-常用格式化公式：
{0:C} 货币；
{0:D4}由0填充
的4个字符宽的字段中显示整数；
{0:000.0}四舍五入小数点保留第几位有效数字；
{0:N2}小数点保留2位有效数字；
{0:N2}% 小数点保留2位有效数字加百分号；
{0:D}长日期；{0:d}短日期；{0:yy-MM-dd}
例如07-3-25；；{0:yyyy-MM-dd} 例如2007-3-25
11.GridView实现用“...”代替超长字符串：
效果图：
解
决方法：数据绑定后过滤每一行即可
for (int i = 0; i <=
GridView1.Rows.Count - 1; i++)
{
DataRowView
mydrv;
string gIntro;
if
(GridView1.PageIndex == 0)
{
mydrv =
myds.Tables["飞狐工作室"].DefaultView[i];//表名
gIntro =
Convert.ToString(mydrv["家庭住址"]);//所要处理的字段
GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
}
else
{
mydrv =
myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];
gIntro = Convert.ToString(mydrv["家庭住址"]);
GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
}
}
调用的方法：
public string SubStr(string sString, int nLeng)
{
if (sString.Length <= nLeng)
{
return
sString;
}
string sNewStr = sString.Substring(0,
nLeng);
sNewStr = sNewStr + "...";
return sNewStr;
}
后台全部代码：
using System;
using System.Data;
using
System.Configuration;
using System.Web;
using
System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon =
"Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
ViewState["SortOrder"] =
"身份证号码";
ViewState["OrderDire"] = "ASC";
bind();
}
}
protected void
GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
bind();
}
protected void GridView1_RowDeleting(object sender,
GridViewDeleteEventArgs e)
{
string sqlstr = "delete
from 飞狐工作室 where 身份证号码='" +
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcon
= new SqlConnection(strCon);
sqlcom = new
SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
bind();
}
protected void GridView1_RowUpdating(object sender,
GridViewUpdateEventArgs e)
{
sqlcon = new
SqlConnection(strCon);
string sqlstr = "update 飞狐工作室 set
姓名='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim()
+ "',家庭住址='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim()
+ "' where 身份证号码='"
+
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom=new SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
}
protected
void GridView1_RowCancelingEdit(object sender,
GridViewCancelEditEventArgs e)
{
GridView1.EditIndex =
-1;
bind();
}
public void bind()
{
string sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "身份证号码" };
GridView1.DataBind();
for
(int i = 0; i <= GridView1.Rows.Count - 1; i++)
{
DataRowView mydrv;
string gIntro;
if
(GridView1.PageIndex == 0)
{
mydrv =
myds.Tables["飞狐工作室"].DefaultView[i];
gIntro =
Convert.ToString(mydrv["家庭住址"]);
GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
}
else
{
mydrv =
myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];
gIntro = Convert.ToString(mydrv["家庭住址"]);
GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
}
}
sqlcon.Close();
}
public string
SubStr(string sString, int nLeng)
{
if (sString.Length
<= nLeng)
{
return sString;
}
string sNewStr = sString.Substring(0, nLeng);
sNewStr =
sNewStr + "...";
return sNewStr;
}
protected
void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
//如果是绑定数据行
if (e.Row.RowType ==
DataControlRowType.DataRow)
{
////鼠标经过时，行背景色变
//e.Row.Attributes.Add("onmouseover",
"this.style.backgroundColor='#E6F5FA'");
////鼠标移出时，行背景色变
//e.Row.Attributes.Add("onmouseout",
"this.style.backgroundColor='#FFFFFF'");
////当有编辑列时，避免出错，要加的RowState判断
//if
(e.Row.RowState == DataControlRowState.Normal || e.Row.RowState ==
DataControlRowState.Alternate)
//{
//
((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick",
"javascript:return confirm('你确认要删除：/"" + e.Row.Cells[1].Text +
"/"吗?')");
//}
}
if (e.Row.RowIndex != -1)
{
int id = e.Row.RowIndex + 1;
e.Row.Cells[0].Text =
id.ToString();
}
}
}
11.GridView一般换行与强制换行：
效果图：
首
先设置<asp:BoundField DataField="家庭住址" HeaderText="家庭住址"
ItemStyle-Width="100" />
gridview里有一列绑定的数据很长，显示的时候在一行里面显示，页面拉得很宽。
原
因是连续英文段为一个整体导致的，在RowDataBound中添加上了一句e.Row.Cells[2].Style.Add("word-
break", "break-all")就可以。
如果要给所有的列增加此属性：
protected void Page_Load(object
sender, EventArgs e)
{
//正常换行
GridView1.Attributes.Add("style",
"word-break:keep-all;word-wrap:normal");
//下面这行是自动换行
GridView1.Attributes.Add("style",
"word-break:break-all;word-wrap:break-word");
if
(!IsPostBack)
{
bind();//调用数据绑定即可
}
}
总之
：善用CSS的word-break:break-all;word-wrap:break-word
属
性即可，这个属性是通用的对于顽固的南换行问题都可以解决，不局限
于GridView。
12.GridView显示隐藏某一列：
本方案为月儿
独创
，不同于网上其他方式，我觉得用一个CheckBox更人性化
，
这样可以隐藏不必要的列，让用户自己选择需要出现的列，在处理多列时这是一个很好的解决方案！
效果图：
图1-开始
图
2-点击显示的CheckBox后
解决方案：
public void bind()
{
string sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "身份证号码" };
GridView1.DataBind();
sqlcon.Close();
GridView1.Columns[3].Visible =
false;//一开始隐藏
CheckBox1.Checked = false;//如果不这样后面的代码会把他True
}
双击CheckBox1，在CheckedChanged方法里写上代码，最后代码如下：
protected
void CheckBox1_CheckedChanged(object sender, EventArgs e)
{
GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;
Response.Write("GridView1的第4列现在的显示隐藏状态
是："+GridView1.Columns[3].Visible.ToString());
}
注意：CheckBox1的AutoPostBack要True
！
后台全部代码如下：
using System;
using System.Data;
using
System.Configuration;
using System.Web;
using System.Web.Security;
using
System.Web.UI;
using System.Web.UI.WebControls;
using
System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using
System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon =
"Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
ViewState["SortOrder"] =
"身份证号码";
ViewState["OrderDire"] = "ASC";
bind();
}
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs
e)
{
GridView1.EditIndex = e.NewEditIndex;
bind();
}
protected void GridView1_RowDeleting(object
sender, GridViewDeleteEventArgs e)
{
string sqlstr =
"delete from 飞狐工作室 where 身份证号码='" +
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcon
= new SqlConnection(strCon);
sqlcom = new
SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
bind();
}
protected void GridView1_RowUpdating(object sender,
GridViewUpdateEventArgs e)
{
sqlcon = new
SqlConnection(strCon);
string sqlstr = "update 飞狐工作室 set
姓名='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim()
+ "',家庭住址='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim()
+ "' where 身份证号码='"
+
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom=new SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
}
protected
void GridView1_RowCancelingEdit(object sender,
GridViewCancelEditEventArgs e)
{
GridView1.EditIndex =
-1;
bind();
}
public void bind()
{
string sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "身份证号码" };
GridView1.DataBind();
sqlcon.Close();
GridView1.Columns[3].Visible = false;
CheckBox1.Checked = false;
}
protected void
CheckBox1_CheckedChanged(object sender, EventArgs e)
{
GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;
Response.Write("GridView1的第4列现在的显示隐藏状态
是："+GridView1.Columns[3].Visible.ToString());
}
}
前
台代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
">
<html xmlns="http://www.w3.org/1999/xhtml
"
>
<head runat="server">
<title>GridView显示隐藏列
清清月儿http://blog.csdn.net/21aspnet
</title>
</head>
<body
style="font-size=12px">
<form id="form1"
runat="server">
<div>
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowDeleting="GridView1_RowDeleting"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" >
<FooterStyle
BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField
DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
<asp:BoundField DataField="姓名" HeaderText="用户姓名" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码"
SortExpression="邮政编码" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
</Columns>
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
<asp:CheckBox ID="CheckBox1" runat="server" AutoPostBack="True"
Font-Size="12px"
OnCheckedChanged="CheckBox1_CheckedChanged" Text="显示隐藏家庭住址"
/></div>
</form>
</body>
</html>
13.GridView弹出新页面/弹出制定大小位置新窗口：
效果图：
方案一：简单的方法，新窗口不固定大小
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowDeleting="GridView1_RowDeleting"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" >
<FooterStyle
BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField
DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码"
SortExpression="邮政编码" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:HyperLinkField HeaderText="姓名" Text="姓名" DataNavigateUrlFields
="
姓名" DataNavigateUrlFormatString="Default6.aspx?GoodsID={0}"
Target="mainframe" NavigateUrl="~/Default6.aspx" DataTextField="姓名" >
</asp:HyperLinkField>
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
</Columns>
<RowStyle
ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
DataNavigateUrlFields
是链接的字段
名，DataNavigateUrlFormatString是路径。
方案二：精确控制弹出窗口大小位置
<asp:HyperLinkColumn
DataNavigateUrlField="EmployeeID"
DataNavigateUrlFormatString="javascript:varwin=window.open('detail.aspx?ID={0}',null,'width=300,height=200');window.Close();"
DataTextField="LastName"
HeaderText="LastName"></asp:HyperLinkColumn>
使用的是结合javascript的window.open方法，关于window.open的参数网上有很多帖子，本站也有许多参考
弹出窗口大全
http://blog.csdn.net/21aspnet/archive/2004/10/25/150231.aspx
即可！
14.GridView固定表头(不用javascript只用CSS!，很好用)
：
效果图：
代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML
1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
">
<html xmlns="http://www.w3.org/1999/xhtml
"
>
<head runat="server">
<title>GridView固定表头
清清月儿http://blog.csdn.net/21aspnet
</title>
<style>
.Freezing
{
position:relative ;
table-layout:fixed;
top:expression(this.offsetParent.scrollTop);
z-index: 10;
}
.Freezing
th{text-overflow:ellipsis;overflow:hidden;white-space:
nowrap;padding:2px;}
</style>
</head>
<body
style="font-size=12px">
<form id="form1"
runat="server">
<div style="overflow-y: scroll; height:
200px;width:300px" id="dvBody">
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowDeleting="GridView1_RowDeleting"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" OnRowCreated="GridView1_RowCreated" >
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField
DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码"
SortExpression="邮政编码" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:BoundField DataField="姓名" HeaderText="姓名" />
</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left"
CssClass="ms-formlabel DataGridFixedHeader"/>
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"
/
>
</asp:GridView>
</div>
</form>
</body>
</html>
用法：CSS设如上的样式，HeaderStyle加CssClass="Freezing
，
套住GridView的Div设置高度宽度 <div style="overflow-y: scroll; height:
200px;width:200px" >
15.GridView合并表头多重表头无错完美版（以合并3列3行举例）
效果图：
后台代码：
using System;
using
System.Data;
using System.Configuration;
using System.Web;
using
System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using
System.Drawing;
public partial class _Default : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon =
"Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
bind();
}
}
protected void GridView1_RowEditing(object sender,
GridViewEditEventArgs e)
{
GridView1.EditIndex =
e.NewEditIndex;
bind();
}
protected void
GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
sqlcon = new SqlConnection(strCon);
string sqlstr = "update
飞狐工作室 set 姓名='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim()
+ "',家庭住址='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim()
+ "' where 身份证号码='"
+
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom=new SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
}
protected
void GridView1_RowCancelingEdit(object sender,
GridViewCancelEditEventArgs e)
{
GridView1.EditIndex =
-1;
bind();
}
public void bind()
{
string sqlstr = "select top 10 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "身份证号码" };
GridView1.DataBind();
sqlcon.Close();
}
//这里就是解决方案
protected void GridView1_RowCreated(object sender,
GridViewRowEventArgs e)
{
switch
(e.Row.RowType)
{
case
DataControlRowType.Header:
//第一行表头
TableCellCollection tcHeader = e.Row.Cells;
tcHeader.Clear();
tcHeader.Add(new
TableHeaderCell());
tcHeader[0].Attributes.Add("rowspan", "3"); //跨Row
tcHeader[0].Attributes.Add("bgcolor", "white");
tcHeader[0].Text = "";
tcHeader.Add(new
TableHeaderCell());
//tcHeader[1].Attributes.Add("bgcolor", "Red");
tcHeader[1].Attributes.Add("colspan", "6"); //跨Column
tcHeader[1].Text = "全部信息</th></tr><tr>";
//第二行表头
tcHeader.Add(new
TableHeaderCell());
tcHeader[2].Attributes.Add("bgcolor", "DarkSeaGreen");
tcHeader[2].Text = "身份证号码";
tcHeader.Add(new
TableHeaderCell());
tcHeader[3].Attributes.Add("bgcolor", "LightSteelBlue");
tcHeader[3].Attributes.Add("colspan", "2");
tcHeader[3].Text = "基本信息";
tcHeader.Add(new
TableHeaderCell());
tcHeader[4].Attributes.Add("bgcolor", "DarkSeaGreen");
tcHeader[4].Text = "福利";
tcHeader.Add(new
TableHeaderCell());
tcHeader[5].Attributes.Add("bgcolor", "LightSteelBlue");
tcHeader[5].Attributes.Add("colspan", "2");
tcHeader[5].Text = "联系方式</th></tr><tr>";
//第三行表头
tcHeader.Add(new
TableHeaderCell());
tcHeader[6].Attributes.Add("bgcolor", "Khaki");
tcHeader[6].Text = "身份证号码";
tcHeader.Add(new
TableHeaderCell());
tcHeader[7].Attributes.Add("bgcolor", "Khaki");
tcHeader[7].Text = "姓名";
tcHeader.Add(new
TableHeaderCell());
tcHeader[8].Attributes.Add("bgcolor", "Khaki");
tcHeader[8].Text = "出生日期";
tcHeader.Add(new
TableHeaderCell());
tcHeader[9].Attributes.Add("bgcolor", "Khaki");
tcHeader[9].Text = "薪水";
tcHeader.Add(new
TableHeaderCell());
tcHeader[10].Attributes.Add("bgcolor", "Khaki");
tcHeader[10].Text = "家庭住址";
tcHeader.Add(new
TableHeaderCell());
tcHeader[11].Attributes.Add("bgcolor", "Khaki");
tcHeader[11].Text = "邮政编码";
break;
}
}
}
前台：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
">
<html xmlns="http://www.w3.org/1999/xhtml
"
>
<head runat="server">
<title>GridView合并多重表头表头 清清月儿http://blog.csdn.net/21aspnet
</title>
</head>
<body
>
<form id="form1" runat="server">
<div >
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" OnRowCreated="GridView1_RowCreated" >
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:CommandField
HeaderText="编辑" ShowEditButton="True" />
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True"
/>
<asp:BoundField DataField="姓名"
HeaderText="姓名" />
<asp:BoundField
DataField="出生日期" HeaderText="邮政编码" />
<asp:BoundField DataField="起薪" HeaderText="起薪" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left"
CssClass="ms-formlabel DataGridFixedHeader"/>
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
</div>
</form>
</body>
</html>
16.GridView突出显示某一单元格（例如金额低于多少，分数不及格等）
效果图：
解决方案：主要是绑定后过滤
GridView1.DataBind();
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
{
DataRowView mydrv =
myds.Tables["飞狐工作室"].DefaultView[i];
string score =
Convert.ToString(mydrv["起薪"]);
if
(Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等
{
GridView1.Rows[i].Cells[4].BackColor =
System.Drawing.Color.Red;
}
}
sqlcon.Close();
全部后台代码：
using System;
using System.Data;
using System.Configuration;
using
System.Web;
using System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using
System.Drawing;
public partial class Default7 : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon =
"Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
bind();
}
}
protected void GridView1_RowEditing(object
sender, GridViewEditEventArgs e)
{
GridView1.EditIndex
= e.NewEditIndex;
bind();
}
protected void
GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
sqlcon = new SqlConnection(strCon);
string sqlstr = "update
飞狐工作室 set 姓名='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim()
+ "',家庭住址='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim()
+ "' where 身份证号码='"
+
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom
= new SqlCommand(sqlstr, sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
}
protected
void GridView1_RowCancelingEdit(object sender,
GridViewCancelEditEventArgs e)
{
GridView1.EditIndex =
-1;
bind();
}
public void bind()
{
string sqlstr = "select top 10 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "身份证号码" };
GridView1.DataBind();
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
{
DataRowView mydrv =
myds.Tables["飞狐工作室"].DefaultView[i];
string score =
Convert.ToString(mydrv["起薪"]);
if
(Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能
ToInt32等等
{
GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;
}
}
sqlcon.Close();
}
}
前台代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
">
<html xmlns="http://www.w3.org/1999/xhtml
"
>
<head id="Head1" runat="server">
<title>GridView突出显示某一单元格 清清月儿http://blog.csdn.net/21aspnet
</title>
</head>
<body
>
<form id="form1" runat="server">
<div >
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" >
<FooterStyle
BackColor="White" ForeColor="#000066" />
<Columns>
<asp:CommandField
HeaderText="编辑" ShowEditButton="True" />
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True"
/>
<asp:BoundField DataField="姓名"
HeaderText="姓名" />
<asp:BoundField
DataField="出生日期" HeaderText="邮政编码" />
<asp:BoundField DataField="起薪" HeaderText="起薪"
DataFormatString="{0:C}" HtmlEncode="false"/>
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left"
CssClass="ms-formlabel DataGridFixedHeader"/>
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
</div>
</form>
</body>
</html>
17.GridView加入自动求和求平均值小计
效果图：
解
决方案：
private double sum =
0;//取指定列的数据和，你要根据具体情况对待可能你要处理的是int
protected void
GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowIndex >= 0)
{
sum
+= Convert.ToDouble(e.Row.Cells[6].Text);
}
else
if (e.Row.RowType == DataControlRowType.Footer)
{
e.Row.Cells[5].Text = "总薪水为：";
e.Row.Cells[6].Text =
sum.ToString();
e.Row.Cells[3].Text = "平均薪水为：";
e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();
}
}
后台全部代码：
using System;
using System.Data;
using
System.Configuration;
using System.Web;
using
System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using
System.Drawing;
public partial class Default7 : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon =
"Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
bind();
}
}
protected void GridView1_RowEditing(object
sender, GridViewEditEventArgs e)
{
GridView1.EditIndex
= e.NewEditIndex;
bind();
}
protected void
GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
sqlcon = new SqlConnection(strCon);
string sqlstr = "update
飞狐工作室 set 姓名='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim()
+ "',家庭住址='"
+
((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim()
+ "' where 身份证号码='"
+
GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom
= new SqlCommand(sqlstr, sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
}
protected
void GridView1_RowCancelingEdit(object sender,
GridViewCancelEditEventArgs e)
{
GridView1.EditIndex =
-1;
bind();
}
public void bind()
{
string sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "身份证号码" };
GridView1.DataBind();
sqlcon.Close();
}
private double sum = 0;//取指定列的数据和
protected void GridView1_RowDataBound(object sender,
GridViewRowEventArgs e)
{
if
(e.Row.RowIndex >= 0)
{
sum +=
Convert.ToDouble(e.Row.Cells[6].Text);
}
else if
(e.Row.RowType == DataControlRowType.Footer)
{
e.Row.Cells[5].Text = "总薪水为：";
e.Row.Cells[6].Text =
sum.ToString();
e.Row.Cells[3].Text = "平均薪水为：";
e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();
}
}
}
前台：唯一的花头就是设置ShowFooter="True"
，否则默认表头为隐藏
的！
<asp:GridView ID="GridView1"
runat="server" AutoGenerateColumns="False" CellPadding="3"
OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" OnRowDataBound="GridView1_RowDataBound"
ShowFooter="True" >
<FooterStyle
BackColor="White" ForeColor="#000066" />
<Columns>
<asp:CommandField
HeaderText="编辑" ShowEditButton="True" />
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True"
/>
<asp:BoundField DataField="姓名"
HeaderText="姓名" />
<asp:BoundField
DataField="出生日期" HeaderText="邮政编码" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
<asp:BoundField DataField="起薪" HeaderText="起薪" />
</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left"
CssClass="ms-formlabel DataGridFixedHeader"/>
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
18.GridView
数据导入Excel/Excel数据
读入GridView
效果图：
解决方案：
页面增加一个按钮，单击事件添加如下方法：
protected void
Button1_Click(object sender, EventArgs e)
{
Export("application/ms-excel", "学生成绩报表.xls");
}
private void Export(string FileType, string FileName)
{
Response.Charset = "GB2312";
Response.ContentEncoding =
System.Text.Encoding.UTF7;
Response.AppendHeader("Content-Disposition", "attachment;filename=" +
HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
Response.ContentType = FileType;
this.EnableViewState =
false;
StringWriter tw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(tw);
GridView1.RenderControl(hw);
Response.Write(tw.ToString());
Response.End();
}
//如果没有下面方法会报错类
型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内
public
override void VerifyRenderingInServerForm(Control control)
{
}
还有由于是文件操作所以要引入名称空间IO和Text
后台代码：
using System;
using System.Data;
using
System.Configuration;
using System.Web;
using
System.Web.Security;
using System.Web.UI;
using
System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using
System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using
System.Drawing;
using System.IO;
using System.Text;
public
partial class Default7 : System.Web.UI.Page
{
SqlConnection
sqlcon;
SqlCommand sqlcom;
string strCon = "Data
Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
protected void
Page_Load(object sender, EventArgs e)
{
if
(!IsPostBack)
{
bind();
}
}
public void bind()
{
string sqlstr = "select top 5 * from 飞狐工作室";
sqlcon = new
SqlConnection(strCon);
SqlDataAdapter myda = new
SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "飞狐工作室");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new
string[] { "身份证号码" };
GridView1.DataBind();
sqlcon.Close();
}
protected void Button1_Click(object sender, EventArgs e)
{
Export("application/ms-excel", "学生成绩报表.xls");
}
private void Export(string FileType, string FileName)
{
Response.Charset = "GB2312";
Response.ContentEncoding =
System.Text.Encoding.UTF7;
Response.AppendHeader("Content-Disposition", "attachment;filename=" +
HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
Response.ContentType = FileType;
this.EnableViewState =
false;
StringWriter tw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(tw);
GridView1.RenderControl(hw);
Response.Write(tw.ToString());
Response.End();
}
public override void
VerifyRenderingInServerForm(Control control)
{
}
}
前台
：
<asp:GridView ID="GridView1"
runat="server" AutoGenerateColumns="False" CellPadding="3"
BackColor="White" BorderColor="#CCCCCC" BorderStyle="None"
BorderWidth="1px" Font-Size="12px" >
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField
DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
<asp:BoundField DataField="姓名" HeaderText="姓名" />
<asp:BoundField DataField="出生日期" HeaderText="邮政编码" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
<asp:BoundField DataField="起薪" HeaderText="起薪" />
</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True"
ForeColor="White" />
<PagerStyle
BackColor="White" ForeColor="#000066" HorizontalAlign="Left"
CssClass="ms-formlabel DataGridFixedHeader"/>
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White"
/>
</asp:GridView>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click"
Text="导出" />
读取Excel数据的代码
：这个很简单的
private DataSet
CreateDataSource()
{
string strCon;
strCon =
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" +
Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";
OleDbConnection olecon = new OleDbConnection(strCon);
OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]",
strCon);
DataSet myds = new DataSet();
myda.Fill(myds);
return myds;
}
protected void
Button1_Click(object sender, EventArgs e)
{
GridView1.DataSource = CreateDataSource();
GridView1.DataBind();
}
由于时间关系，这个文章先到此。有时间再写，其实还有很多技巧，不过我觉得如果能融汇贯通应该可以举一反三
。
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