Event not triggered

i have used a aspx page with vb code. the page is not firing any event after some time if开发者_StackOverflow the page is kept idle.

any property needs to set in page attribute??

any iis settings i should update

How to solve the issue

Based on just what you posted I would guess your session is timing out. I'm pretty sure that will break viewstate/postback functionality.

Please post your web.config <system.web><sessionState> configuration section, both for development and production.

Also you implied everything works fine if you postback right away, but if you load a page, wait X minutes, then postback, you get no postback event firing. We need to know what X is and if it is a consistent number of minutes.

Edit: If this is in fact a session timeout issue, the default session timeout is 20 minutes. Does this seem to line up with your problem?