How to auto logout after 1hr of inactivity

What kind of authentication mechanism you are following? If you are using "Form" authentication (which is a default one in asp.net), you can set the timeout in the  web.config itself like below:

 

 

If you want to know more about Form Authentication, you can use the below url:

 

 

Hope this helps!

Please go through below links:

 

http://www.dotnetgallery.com/kb/resource9-how-to-do-auto-logout-and-redirect-to-login-page-when-session-expires-using.aspx

 

http://www.dotnetfunda.com/articles/show/3130/automatically-logout-when-user-is-idle-for-sometime