在ASP.NET中显示进度条
点击次数：30 次 发布日期：2008-11-27 01:51:57 作者：源代码网
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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： 1.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； 2.在模板类型中选择ASP.NET Web应用程序； 3.位置里输入：http://localhost/WebPortal； 4.添加新项：名字为ShowProgress的Web窗体。 5.在您的Web窗体ShowProgress.aspx上添加任何其他的Web服务器控件。 6.在ShowProgress.aspx上单击右键，点“查看代码”，在最上面输入： Visual C# .NET代码 using System.Threading; Visual Basic .NET代码 Imports System.Threading 7.在Page_Load事件里输入： Visual C# .NET代码 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(); Thread.Sleep(10000); Visual Basic .NET代码 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() Thread.Sleep(10000) 8.在ShowProgress.aspx窗体的html的中输入： <script> HideWait(); </script> 9.点在浏览器中查看即可。 源代码网供稿. |
