<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
Namespace="System.Web.UI" TagPrefix="asp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<script runat="server">
protected void GridView1_PageIndexChanged(object sender, EventArgs e)
{
//延迟3秒显示
System.Threading.Thread.Sleep(3000);
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>My First AJAX Page</title>
</head>
<body>
<form >Loading...</div>
</ProgressTemplate>
</asp:UpdateProgress>
</form>
</body>
</html>