asp.net UpdaeProgress的简单用法

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UpdateProgress 应该就是“更新进度” 的意思吧。
使用方法：
1.添加一个ScriptManager控件
2.添加一个UpdatePanel控件
3.添加一个UpdateProgress控件
设置UpdateProgress控件的AssociatedUpdatePanelID为第2步 UpdatePanel的ID（如果页面中有多个UpdatePanel则，只有相应updatePanel关联的updateProgress显示）
测试例子代码：

复制代码代码如下:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> 
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %> 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head id="Head1" runat="server"> 
<title>Untitled Page</title> 
<style type="text/css"> 
#UpdatePanel1, #UpdatePanel2, #UpdateProgress1 { 
border-right: gray 1px solid; border-top: gray 1px solid; 
border-left: gray 1px solid; border-bottom: gray 1px solid; 
} 
#UpdatePanel1, #UpdatePanel2 { 
width:200px; height:200px; position: relative; 
float: left; margin-left: 10px; margin-top: 10px; 
} 
#UpdateProgress3 { 
width: 200px; background-color: #FFC080; 
bottom: 0%; left: 0px; position: absolute; 
} 
#UpdateProgress2 { 
width: 200px; background-color: #FFC080; 
bottom: 0%; left: 0px; position: absolute; 
} 
</style> 
</head> 
<body> 
<form id="form1" runat="server"> 
<asp:ScriptManager ID="ScriptManager1" runat="server" /> 
<asp:UpdatePanel ID="UpdatePanel1" runat="server"> 
<ContentTemplate> 
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click1" Text="Button" /> 
<asp:Label ID="Label1" runat="server" Text="显示数据"></asp:Label> 
<asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="UpdatePanel1"> 
<ProgressTemplate> 
<div id="progress"><img src="img/1.gif" /> 
等待中... 
</div> 
</ProgressTemplate> 
</asp:UpdateProgress> 
</ContentTemplate> 
</asp:UpdatePanel> 
<asp:UpdatePanel ID="UpdatePanel2" runat="server"> 
<ContentTemplate> 
<asp:Button ID="Button2" runat="server" OnClick="Button2_Click1" Text="Button" /><br /> 
<br /> 
<asp:Label ID="Label2" runat="server" Text="显示数据"></asp:Label> 
<asp:UpdateProgress ID="UpdateProgress2" runat="server" AssociatedUpdatePanelID="UpdatePanel2"> 
<ProgressTemplate> 
更新数据中.... 
</ProgressTemplate> 
</asp:UpdateProgress> 
</ContentTemplate> 
</asp:UpdatePanel> 
</form> 
</body> 
</html>

c#代码：

复制代码代码如下:

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.Threading; 
public partial class _Default : System.Web.UI.Page 
{ 
protected void Page_Load(object sender, EventArgs e) 
{ 
} 
protected void Button1_Click1(object sender, EventArgs e) 
{ 
System.Threading.Thread.Sleep(3000); 
Label1.Text = "刷新时间：" + DateTime.Now.ToString(); 
} 
protected void Button2_Click1(object sender, EventArgs e) 
{ 
System.Threading.Thread.Sleep(3000); 
Label2.Text = "刷新时间：" + DateTime.Now.ToString(); 
} 
} 