disable back button after logout in any browser in asp.net.

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i am disable back button after logout but it not working. i am using master page for my login page. i implement this code in my dashboard master page where i place my logout button.

C#

if (!IsPostBack)
           {
               Response.Buffer = true;
               Response.ExpiresAbsolute = DateTime.Now.AddDays(-1d);
               Response.Expires = -1500;
               Response.CacheControl = "no-cache";
               Response.Cache.SetNoStore();
               if (Session[SessionKeys.CurrentUser] == null)
               {
                   Response.Redirect("Default.aspx");
               }
           }

Posted 19-Aug-13 0:16am

Manohar Khillare

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Sanjeeb Lenka · Answer 1 · 2013-08-19T00:21:00

JavaScript

<script type="text/javascript" language="javascript">
function DisableBackButton() {
window.history.forward()
}
DisableBackButton();
window.onload = DisableBackButton;
window.onpageshow = function(evt) { if (evt.persisted) DisableBackButton() }
window.onunload = function() { void (0) }
</script>

We need to place above script in header section of a page wherever we need to prevent users navigate back to another page by using browser back button.

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 2 · 2013-08-19T08:38:00

Solution 3

Please go through the awesome Tip - Browser back button issue after logout[^] to know different techniques to handle this issue.

Posted 19-Aug-13 8:38am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Thanks7872 · Answer 3 · 2013-08-19T00:58:00

Use the below code on the page(head) which you want to prevent to be landed using back button.

C#

<script type="text/javascript">
  function preventBack() { window.history.forward(); }
  setTimeout("preventBack()", 0);
  window.onunload = function() { null };
</script>
 
<script language="JavaScript" type="text/javascript">
  javascript: window.history.forward(1);
</script>

You are done.

Regards..:)

disable back button after logout in any browser in asp.net.

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