简单注销用户控件

前台：

  
    

   
     
   
     <
   
     asp:Button 
   
     ID
   
     ="btnLogout"
   
      runat
   
     ="server"
   
      Text
   
     ="注销"
   
      onclick
   
     ="btnLogout_Click"
   
      
   
     />
  
    

后台：

 

  
    

   
     
   
      
   
     protected
   
      
   
     void
   
      Page_Load(
   
     object
   
      sender, EventArgs e)
 {
 Response.Buffer 
   
     =
   
      
   
     true
   
     ;
 Response.ExpiresAbsolute 
   
     =
   
      DateTime.Now.AddDays(
   
     -
   
     1
   
     );
 Response.Expires 
   
     =
   
      
   
     0
   
     ;
 Response.CacheControl 
   
     =
   
      
   
     "
   
     no-cache
   
     "
   
     ;

 }

 
   
     protected
   
      
   
     void
   
      btnLogout_Click(
   
     object
   
      sender, EventArgs e)
 {
 Session.Clear();
 Response.Redirect(
   
     "
   
     ../Login.aspx
   
     "
   
     );
 }