I want to expired session in asp.net

Question

Hi guys,

 

Actully i have created web application. In that 1st page is welcome page then login page open.

I also give logout link , when click on logout page that time update log out query execute also all session  has clear also remove .

 

But problem is if user close browser forcefully or user will close direct browser without click logout link how i can execute that update log query for logout. please help me all client have that problem help me sir .mam

 

Thanks & Regards

suraj bhoir