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GirdView的几种使用方法

2008-03-27 15:55 387 查看

GridView的各种用法(1)

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" />
                              <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>

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