对于长时间装载的ASP.NET页面如何在客户端浏览器中显示进度?
作者:孟宪会 发表于:2004-04-19 08:58:52
对于加载时间比较长的ASP.NET页面,我们可以在客户端浏览器中显示进度条来显示页面正在装载。下面就是具体的实现过程:
- 新建项目,名字为WebPortal,在项目类型中选择Visual C#项目或者Visual Basic项目都可;
- 在模板类型中选择ASP.NET Web应用程序;
- 位置里输入:http://localhost/WebPortal;
- 添加新项:名字为ShowProgress的Web窗体。
- 在您的Web窗体ShowProgress.aspx上添加任何其他的Web服务器控件。
- 在ShowProgress.aspx上单击右键,点“查看代码”,在最上面输入:
Visual C# .NET代码<br />using System.Threading;<br /> Visual Basic .NET代码<br />Imports System.Threading<br /> - 在Page_Load事件里输入:
Visual C# .NET代码
<br />Response.Write("<div id='mydiv' >");<br />Response.Write("_");<br />Response.Write("</div>");<br />Response.Write("<script>mydiv.innerText = '';</script>");<br />Response.Write("<script language=javascript>;");<br />Response.Write("var dots = 0;var dotmax = 10;function ShowWait()");<br />Response.Write("{var output; output = '正在装载页面';dots++;if(dots>=dotmax)dots=1;");<br />Response.Write("for(var x = 0;x < dots;x++){output += '·';}mydiv.innerText = output;}");<br />Response.Write("function StartShowWait(){mydiv.style.visibility = 'visible'; ");<br />Response.Write("window.setInterval('ShowWait()',1000);}");<br />Response.Write("function HideWait(){mydiv.style.visibility = 'hidden';");<br />Response.Write("window.clearInterval();}");<br />Response.Write("StartShowWait();</script>");<br />Response.Flush();<br />Thread.Sleep(10000);<br /> Visual Basic .NET代码<br />Response.Write("<div id='mydiv' >")<br />Response.Write("_")<br />Response.Write("</div>")<br />Response.Write("<script>mydiv.innerText = '';</script>")<br />Response.Write("<script language=javascript>;")<br />Response.Write("var dots = 0;var dotmax = 10;function ShowWait()")<br />Response.Write("{var output; output = '正在装载页面';dots++;if(dots>=dotmax)dots=1;")<br />Response.Write("for(var x = 0;x < dots;x++){output += '·';}mydiv.innerText = output;}")<br />Response.Write("function StartShowWait(){mydiv.style.visibility = 'visible'; ")<br />Response.Write("window.setInterval('ShowWait()',1000);}")<br />Response.Write("function HideWait(){mydiv.style.visibility='hidden';")<br />Response.Write("window.clearInterval();}")<br />Response.Write("StartShowWait();</script>")<br />Response.Flush()<br />Thread.Sleep(10000)<br /> - 在ShowProgress.aspx窗体的html的中输入:
<br /><script><br />HideWait();<br /></script><br /> - 点在浏览器中查看即可。