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asp.net gridview实现正在加载效果方案一AJAX(转)

2013-08-01 16:01 459 查看

前台代码：

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

<!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></title>

</head>
<body>
<form id="form1" runat="server">
<div>

<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<fieldset>
<legend>UpdatePanel</legend>
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
<asp:UpdateProgress ID="UpdateProgress1" runat="server">
<ProgressTemplate>
正在加载数据.............
</ProgressTemplate>
</asp:UpdateProgress>
<asp:GridView ID="GridView1" runat="server"
onrowcreated="GridView1_RowCreated"
onpageindexchanging="GridView1_PageIndexChanging" Width="1000px"
onrowdatabound="GridView1_RowDataBound"
EmptyDataText="没有查询到您所需要的数据" PageSize="15" AllowPaging="True" >
<FooterStyle CssClass="GridViewFooterStyle" />
<RowStyle CssClass="GridViewRowStyle" />
<SelectedRowStyle CssClass="GridViewSelectedRowStyle" />
<PagerStyle CssClass="GridViewPagerStyle" />
<AlternatingRowStyle CssClass="GridViewAlternatingRowStyle" />
<HeaderStyle CssClass="GridViewHeaderStyle" />

</asp:GridView>
</fieldset>
</ContentTemplate>
</asp:UpdatePanel>

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

后台cs代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Data;

public partial class _Default : System.Web.UI.Page
{

protected void Page_Load(object sender, EventArgs e)
{

}
protected void Button1_Click(object sender, EventArgs e)
{
System.Threading.Thread.Sleep(3000);
databind();
}
public void databind()
{
string sql = "SELECT [orderid], [customerid], [shipvia], [shipname] FROM [orders]";
string con = "Data Source=.;Initial Catalog=northwind;User ID=sa;Password=19790601";
SqlConnection mycon = new SqlConnection(con);
mycon.Open();
SqlDataAdapter mydt = new SqlDataAdapter(sql, mycon);
DataSet ds = new DataSet();
mydt.Fill(ds);
GridView1.DataSource = ds;
GridView1.DataBind();
mycon.Close();
}
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
databind();
}
}

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