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Gridview的基本用法

2010-04-02 15:04 387 查看

(1)引用AspNetPager.dll 文件

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default9.aspx.cs" Inherits="Default9" %>

<%@ Register Assembly="AspNetPager" Namespace="Wuqi.Webdiyer" TagPrefix="webdiyer" %>

<!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>无标题页</title>
<style type="text/css">
div{
font-size:15px;
}

</style>

</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True" CellPadding="4" ForeColor="#333333" GridLines="None" OnPageIndexChanging="GridView1_PageIndexChanging" PageSize="2" OnRowDataBound="GridView1_RowDataBound" AutoGenerateColumns="False" OnRowEditing="GridView1_RowEditing" OnRowCancelingEdit="GridView1_RowCancelingEdit" OnRowDeleting="GridView1_RowDeleting" OnRowUpdating="GridView1_RowUpdating" OnSelectedIndexChanging="GridView1_SelectedIndexChanging" DataKeyNames="id,number">
<RowStyle BackColor="#EFF3FB" />
<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<AlternatingRowStyle BackColor="White" />
<EditRowStyle BackColor="#2461BF" />
<Columns>
<asp:BoundField DataField="id" HeaderText="编号" />
<asp:BoundField DataField="number" HeaderText="数字" />
<asp:CommandField ShowEditButton="True" />
<asp:CommandField ShowDeleteButton="True" />
<asp:CommandField ShowSelectButton="True" />
</Columns>

</asp:GridView>

<table cellpadding="0" cellspacing="0" align="center" width="99%" class="border">
<tr>
<td align="left" colspan="2" style="height: 18px">
<Webdiyer:AspNetPager id="AspNetPager2" runat="server" HorizontalAlign="Right" FirstPageText="<<" LastPageText=">>" PrevPageText="<" NextPageText=">" NumericButtonTextFormatString="-{0}-" Width="600px"
ShowCustomInfoSection="Left" ShowBoxThreshold="2" PageSize="5" InputBoxClass="text2" TextAfterInputBox="" OnPageChanging="AspNetPager1_PageChanging" />
</td>
</tr>
</table>
<br />

</form>
</body>
</html>

.cs 文件

--------------------------------------------------------------------------------------------------

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;
/*
* 作者：靳志远 (jack15850798154)
* 时间：2010-04-02
* 说明：Gridview 的基本用法；
*/
public partial class Default9 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
//Gridview数据绑定；
// databind();

//aspnetpager的基本用法；
SqlConnection con = new SqlConnection("server=.;DataBase=master;user=sa;pwd=sql; ");
con.Open();
SqlCommand cmd = new SqlCommand("select count(*) from a", con);
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
AspNetPager2.AlwaysShow = true;
AspNetPager2.PageSize = 2;
AspNetPager2.RecordCount = (int)cmd.ExecuteScalar();
con.Close();
databind();
}
}
/// <summary>
/// 绑定数据
/// </summary>
public void databind()
{
SqlConnection con = new SqlConnection("server=.;DataBase=master;user=sa;pwd=sql; ");
con.Open();
SqlCommand cmd = new SqlCommand("select * from a", con);
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
adapter.Fill(dt);
GridView1.DataSource = dt;
GridView1.DataBind();
con.Close();
}
/// <summary>
/// Gridview1_PageIndexChanging
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{

GridView1.PageIndex = e.NewPageIndex;
SqlConnection con = new SqlConnection("Data Source=.;DataBase=master;uid=sa;pwd=sql; ");
con.Open();
SqlCommand cmd = new SqlCommand("select * from a", con);
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
adapter.Fill(dt);
GridView1.DataSource = dt;
GridView1.DataBind();

con.Close();
}
/// <summary>
/// 当鼠标经过GridView的行的时候变色。离开不变色
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
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'");
}
}
protected void Button1_Click(object sender, EventArgs e)
{
//this.Label1.Text = this.TextBox1.Text.Trim();
//this.Button1.Text = this.TextBox1.Text.Trim();
//this.DropDownList1.Items.Add("啊啊啊啊");
//this.DropDownList1.Items.Add("bb");
//this.DropDownList1.Items.Add("ccccccc");
//this.DropDownList1.Items.Add("ddddd");

// 
// 
// 
// 
// 

}
/// <summary>
/// GridView1的行编辑事件；
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
this.GridView1.EditIndex = e.NewEditIndex;
databind();
}

protected void GridView1_SelectedIndexChanging(object sender, GridViewSelectEventArgs e)
{

}

/// <summary>
/// GridView1的行删除事件；
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int id = Convert.ToInt32(this.GridView1.DataKeys[e.RowIndex][0].ToString());

int i = deletesql(id);
if (i > 0)
{
Response.Write("<script>alert('删除成功')</script>");
}
else
{
Response.Write("<script>alert('删除失败')</script>");
}
databind();

}
/// <summary>
/// GridView1的行修改事件；
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
int id=Convert.ToInt32(this.GridView1.DataKeys[e.RowIndex][0].ToString());
string name= ((TextBox)this.GridView1.Rows[e.RowIndex].Cells[1].Controls[0]).Text.ToString();
int i= updatesql(id, name);
if (i > 0)
{
Response.Write("<script>alert('修改成功')</script>");
}
else
{
Response.Write("<script>alert('修改失败')</script>");
}
}
/// <summary>
/// 修改SQL根据ID 来修改number;
/// </summary>
/// <param name="id"></param>
/// <param name="name"></param>
/// <returns></returns>
public int updatesql(int id, string number)
{
SqlConnection con = new SqlConnection("Data Source=.;DataBase=master;uid=sa;pwd=sql;");
con.Open();
SqlCommand cmd = new SqlCommand("update a set number=@number where id=@id",con);
cmd.Parameters.Add("@number",number);

cmd.Parameters.Add("@id",id);
int i = cmd.ExecuteNonQuery();
con.Close();
return i;

}
/// <summary>
/// 删除SQL根据ID;
/// </summary>
/// <param name="id"></param>
/// <param name="name"></param>
/// <returns></returns>
public int deletesql(int id)
{
SqlConnection con = new SqlConnection("Data Source=.;DataBase=master;uid=sa;pwd=sql;");
con.Open();
SqlCommand cmd = new SqlCommand("delete a where id=@id", con);
cmd.Parameters.Add("@id", id);
int i = cmd.ExecuteNonQuery();
con.Close();
return i;

}

/// <summary>
/// 编辑中取消事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
this.GridView1.EditIndex = -1;
databind();
}

/// <summary>
/// aspnetpager的pagechanging;
/// </summary>
/// <param name="src"></param>
/// <param name="e"></param>
protected void AspNetPager1_PageChanging(object src, Wuqi.Webdiyer.PageChangingEventArgs e)
{
this.AspNetPager2.CurrentPageIndex = e.NewPageIndex;
SqlConnection con = new SqlConnection("Data Source=.;DataBase=master;uid=sa;pwd=sql; ");
con.Open();
SqlCommand cmd = new SqlCommand("select * from a", con);
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
DataSet dt = new DataSet();

adapter.Fill(dt, AspNetPager2.PageSize * (AspNetPager2.CurrentPageIndex - 1), AspNetPager2.PageSize, "a");
GridView1.DataSource = dt.Tables["a"];
GridView1.DataBind();
con.Close();
}
}

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