session variable timeout prob
<p>i have get the username in session variable while im login, after i logged in i checked whether the session object(username) is null or not to get the username displayed in my page.if the session object is null i make the page to redirect to login page again.  but at certain point if i click any link in any of my page after login it redirected me to Login page, but i havent click logout button. why it makes the session null. wat has to be placed to carry out the session variable througout the pages i visit, instead i click logout it should not be cleared / null- asp.net</p>
