关闭窗口后立即销毁Session

代码如下：

 1 <% @ Page Language = " C# "  AutoEventWireup = " true "  CodeFile = " Default2.aspx.cs "  Inherits = " Default2 "   %>
 2
 3 <! DOCTYPE html PUBLIC  " -//W3C//DTD XHTML 1.0 Transitional//EN "   " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " >
 4
 5 < html xmlns = " http://www.w3.org/1999/xhtml "   >
 6 < head runat = " server " >
 7      < title > 无标题页 </ title >
 8 < script  language = " javascript " >
 9
10 function ClosePage()
11 {
12if((window.screenLeft>=10000 && window.screenTop>=10000)||event.altKey)
13 {
14   window.location.href="/ClosePage.aspx" 
15  }
16}
17
18 </ script >
19 </ head >
20 < body  onunload = " ClosePage() " >
21      < form id = " form1 "  runat = " server " >
22      < div >
23          < asp:Button ID = " Button1 "  runat = " server "  OnClick = " Button1_Click "  Text = " Button "   /></ div >
24      </ form >
25 </ body >
26 </ html >

在ClosePage.cs页面的   Page_Load销毁如下：     Session.Abandon();    
注意：当刷新页面的时候也会触发onunload事件，所以需要判断是否进行关闭再执行Session的销毁操作。即：
if((window.screenLeft>=10000 && window.screenTop>=10000)||event.altKey)
{

} 
   

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