title: How to handle session end in global.asax?
body: <p>I'm working in chat application, I used HashTable for containing User and Operator as a Key &amp; Object of ChatRoom Class as a value of HashTable. Main problem is that When user or Operator close browser or disconnected without logout then It is automatically logout on the end of the session.</p>
  
  <p>Please help me related to that and how to use Global.asax in this matter.  </p>