IDC资讯中心 代码文件： using System; private void Button1_Click(object sender, System.EventArgs e) Web 窗体设计器生成的代码#region Web 窗体设计器生成的代码 }
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Threading;
namespace AjaxTest
{
/**//// <summary>
/// WebForm2 的摘要说明。
/// </summary>
public class WebForm2 : System.Web.UI.Page
{
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.Label Label1;
private void Page_Load(object sender, System.EventArgs e)
{
Response.Write(“<div id=mydiv >”);
Response.Write(“_”);
Response.Write(“</div>”);
Response.Write(“<script>mydiv.innerText = ;</script>”);
Response.Write(“<script language=javascript>;”);
Response.Write(“var dots = 0;var dotmax = 10;function ShowWait()”);
Response.Write(“{var output; output = 正在装载页面;dots++;if(dots>=dotmax)dots=1;”);
Response.Write(“for(var x = 0;x < dots;x++){output += ·;}mydiv.innerText = output;}”);
Response.Write(“function StartShowWait(){mydiv.style.visibility = visible; “);
Response.Write(“window.setInterval(ShowWait(),1000);}”);
Response.Write(“function HideWait(){mydiv.style.visibility = hidden;”);
Response.Write(“window.clearInterval();}”);
Response.Write(“StartShowWait();</script>”);
Response.Flush();//这一句是最关键的
}
{
//当点击按钮时，假设请求需要较长时间(这里设置为10秒)
System.Threading.Thread.Sleep(10000);
this.Label1.Text = “终于加载完成啦”;
}
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}
/**//// <summary>
/// 设计器支持所需的方法 – 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Load += new System.EventHandler(this.Page_Load);
#endregion
}
}
页面文件：
<%@ Page language=”c#” Codebehind=”WebForm2.aspx.cs” AutoEventWireup=”false” Inherits=”AjaxTest.WebForm2″ %>
<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.0 Transitional//EN” >
<HTML>
<HEAD>
<title>WebForm2</title>
<meta name=”GENERATOR” Content=”Microsoft Visual Studio .NET 7.1″>
<meta name=”CODE_LANGUAGE” Content=”C#”>
<meta name=”vs_defaultClientScript” content=”JavaScript”>
<meta name=”vs_targetSchema” content=”http://schemas.microsoft.com/intellisense/ie5“>
<script>
HideWait();
</script>
</HEAD>
<body MS_POSITIONING=”GridLayout”>
<form id=”Form1″ method=”post” runat=”server”>
<FONT face=”宋体”>
<asp:Button id=”Button1″ style=”Z-INDEX: 101; LEFT: 480px; POSITION: absolute; TOP: 200px” runat=”server”
Text=”Button”></asp:Button>
<asp:Label id=”Label1″ style=”Z-INDEX: 102; LEFT: 632px; POSITION: absolute; TOP: 240px” runat=”server”>Label</asp:Label></FONT>
</form>
</body>
</HTML>
http://fanrsh.cnblogs.com/archive/2006/06/14/425888.html
用javascript实现（页面正在加载的效果）_javascript教程
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