用&#106avascript实现(页面正在加载的效果)

王朝html/css/js·作者佚名  2006-11-24
窄屏简体版  字體: |||超大  

代码文件:

using System;

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

}

private void Button1_Click(object sender, System.EventArgs e)

{

//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";

}

Web 窗体设计器生成的代码#region Web 窗体设计器生成的代码

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>

 
 
 
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