前台代码
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="UpdateProgress.aspx.cs" Inherits="UpdateProgress" %>
<%@ 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 1.0 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>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="lheader" runat="server" Font-Bold="True" Font-Size="Large" Text="使用UpdateProgress控件"> </asp:Label> <br />
<hr />
</div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Label ID="linfo" runat="server" Text="单击下面按钮进行测试"> </asp:Label> <br />
<asp:Button ID="btTest" runat="server" OnClick="btTest_Click" Text="测试" /> <br />
<asp:Label ID="lResult" runat="server"> </asp:Label>
<asp:UpdatePr
