In my application I can already redirect the user to the login page after 5 minutes of inactivity. But this only happened after a postback. I wanted the user to redirect to the page after 5 minutes of inactivity without doing a postback. As long as he didn't click anything (e.g. sorting) after 5 minutes he will be redirected.
By the way, I'm using update panel on my pages.
Thank you. Please help.