after logout , then redirect to login page... when click IE browser back button it show the content ... it suppose cannot display... i know the problem is with the cache in browser... how to solve it...

Set your pages to not use caching. Then any request for a page (even the Back button) will force a request to the server. Once logged out, any request will revert to the login page.

-Peter
compiledthoughts.com

how to set page not use cache...? I try response.cache, it work.It redirect to login page when press IE Browser back button. But when i search and display search result, then i go to other page. When i press back to search result page, then it show IE browser error page/not found page.IT happen there no cache when i not logout. SO How to set not use cache in page properly?

Please google for that answer, or search this forum. That question has been answered many times on here.

-Peter
compiledthoughts.com