對於載入時間比較長的ASP.NET頁面，我們可以在用戶端瀏覽器中顯示進度條來顯示頁面正在裝載。下面就是具體的實現過程：
1.建立項目，名字為WebPortal，在項目類型中選擇Visual C#項目或者Visual Basic項目都可；
2.在模板類型中選擇ASP.NET Web應用程式；
3.位置裡輸入：http://localhost/WebPortal；
4.添加新項：名字為ShowProgress的Web表單。
5.在您的Web表單ShowProgress.aspx上添加任何其他的Web伺服器控制項。
6.在ShowProgress.aspx上單擊右鍵，點“查看代碼”，在最上面輸入：
Visual C# .NET代碼
using System.Threading;
Visual Basic .NET代碼
Imports System.Threading
7.在Page_Load事件裡輸入： Visual C# .NET代碼
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 = '正在裝載頁面';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代碼
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 = '正在裝載頁面';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表單的html的中輸入：
<script>
HideWait();
</script>
9.點在瀏覽器中查看即可
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