Prevent page reviews after logout

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Hi,

I am loging out using the following code on click event of logout button:

MIDL

FormsAuthentication.SignOut();
Session.Abandon();
Response.Redirect("Home.aspx");

Page gets load when i click on back button or paste the previous url in address bar After logout.

How prevent this without disable the back button.

Posted 15-Dec-10 0:46am

Aman4.net

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Abdul Quader Mamun 15-Dec-10 6:49am

Use a session variable and set session null when logout and check every page load event. If it is null then back to home page.

Aman4.net 15-Dec-10 7:14am

Dear Abdul,

I am doing this on page load and checking the session on preinit to load masterpage.. But problem still stands

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Al-Farooque Shubho · Answer 1 · 2010-12-15T01:47:00

Solution 1

Chances are that when you click the back button the page is coming from cache.

If that is so, you need to disable page output cache on that page. You can try out these:

In aspx Markup

<%@ OutputCache Duration="0" VaryByParam="none" %>

Or, in CodeBehind

Response.Cache.SetCacheability(HttpCacheability.NoCache);

Posted 15-Dec-10 1:47am

Al-Farooque Shubho

Comments

Aman4.net 15-Dec-10 23:37pm

its generating error i.e. the duration attribute must be positive if i make it 1 then it does not working...

thatraja · Answer 2 · 2010-12-15T08:04:00

Solution 3

This Trip/Trick will clear everything...Fine one.

Browser back button issue after logout[^]

Posted 15-Dec-10 8:04am

thatraja

Comments

Aman4.net 15-Dec-10 23:46pm

Thanx its working fine but while i paste the previous url in address bar again i get the last page..

Dylan Morley · Answer 3 · 2010-12-15T01:47:00

Solution 2

Try this link here, basically adding some cache directives

http://www.extremeexperts.com/Net/FAQ/DisablingBackButton.aspx[^]

Posted 15-Dec-10 1:47am

Dylan Morley

Aman4.net · Answer 4 · 2010-12-15T18:09:00

Thanks to all of you for posting comment and answer..

Here i m going to implement java script to close window after logout it will close the window without any confirmation. "Without any confirmation" becoz i don't want that user click on no and get the same page again.

The code is following:

XML

Response.Write("<script language='javascript'>");
        Response.Write("{");
        Response.Write("window.open('','_self','');");
        Response.Write("window.close();");
        Response.Write("}");
        Response.Write("</script>");

Kasson · Answer 5 · 2010-12-15T18:18:00

Solution 5

Use this code onclick of logout button

Session.clear();//clear session
Session.Abandon();//Abandon session
Response.Cache.SetExpires(DateTime.UtcNow.AddMinutes(-1));
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Cache.SetNoStore();
Response.Redirect("Logout.aspx");

Hope this will solve your problem.

Posted 15-Dec-10 18:18pm

Kasson

Updated 15-Dec-10 19:15pm

v2

Comments

Aman4.net 16-Dec-10 0:29am

Sorry Not effective

Toniyo Jackson 16-Dec-10 1:15am

Always write your code inside code block. Not in inline code.

Prevent page reviews after logout

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