how to prevent back button after logout in asp.net

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ASP.NET

How to prevent back button after logout in asp.net?

Posted 8-Jun-11 22:37pm

Alok Kumar Sharma

Updated 18-Jan-19 23:15pm

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Comments

olegtc 11-Apr-12 11:57am

Does not work in FF

7 solutions

Solution 2

Check this out
Browser back button issue after logout[^]

Posted 8-Jun-11 22:46pm

Prerak Patel

Comments

Tarun.K.S 9-Jun-11 4:52am

Oh both our answers point to the same link! 5+

Solution 3

Kill the session and check in each page if session is empty redirect to login page

Posted 8-Jun-11 22:47pm

JustWorking

Comments

Alok Kumar Sharma 11-Jun-11 8:26am

Thanks,

This is alternate solution.

Member 10931224 17-Jul-14 3:49am

how to check that session is empty

Solution 5

hi,,

best practice redirect to signout.aspx (create a new page for that) and on the page load write the code,

ie, clear all sessions and redirect to login page or what ever it is so when ever the person hit back button it will come to signout.aspx and redirect to login page

happy coding

Posted 8-Jun-11 23:06pm

anvas kuttan

Comments

anvas kuttan 10-Jun-11 0:08am

why tou down voted this one if you dnt like this answer simply reject it

JustWorking 10-Jun-11 4:10am

Same for solution 3 I don't know why downvote :( I 5'ved you and I hope you do same for me :)

anvas kuttan 10-Jun-11 4:15am

yes i did

Solution 8

XML

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <script type="text/javascript">
        function changeHashOnLoad()
         {
            window.location.href += "#";
            setTimeout("changeHashAgain()", "50");
        }

        function changeHashAgain()
         {
            window.location.href += "1";
        }

        var storedHash = window.location.hash;
        window.setInterval(function ()
        {
            if (window.location.hash != storedHash)
             {
                window.location.hash = storedHash;
            }
        },
        50);
    </script>
</head>
<body onload="changeHashOnLoad(); ">
    <form id="form1" runat="server">
    <div>
    </div>
    </form>
</body>
</html>

rajendra patel jat

Posted 1-May-12 2:21am

Rajendra Patel Jat

Comments

Member 10236682 25-Feb-14 2:40am

too good and very absolute for requirment

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Ain Ronquillo · Accepted Answer · 2011-10-24T16:35:00

Solution 7

Please use this code in your Master Page Load Event. :)

C#

if(!IsPostBack)
        {
            if (Session["LoginId"] == null)
                Response.Redirect("frmLogin.aspx");
            else
            {
                Response.ClearHeaders();
                Response.AddHeader("Cache-Control", "no-cache, no-store, max-age=0, must-revalidate");
                Response.AddHeader("Pragma", "no-cache");
                            }
        }

Ain Ronquillo

Posted 24-Oct-11 16:35pm

Ain Ronquillo

Updated 24-Oct-11 16:38pm

v2

Comments

Silverboy with Golden Heart 21-Mar-12 2:05am

its working.

Silverboy with Golden Heart 21-Mar-12 2:06am

can u pls explain y v use response.addheader?

venkateshkalyani 6-Jun-12 6:29am

Beauty.....

Member 9042795 11-Jun-12 3:06am

awesome...worked for me as well...

Ain Ronquillo 23-Aug-12 2:05am

The AddHeader method adds a new HTML header and value to the response sent to the client. It does not replace an existing header of the same name. After a header has been added, it cannot be removed.

prabashanash 27-Feb-14 7:41am

good work.. works perfectly

Mohd Wasif · Accepted Answer · 2011-06-08T22:46:00

Use it in code behind

C#

HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
        HttpContext.Current.Response.Cache.SetNoServerCaching();
        HttpContext.Current.Response.Cache.SetNoStore();
        Session.Abandon();

Use it on head tag of aspx page

<script type="text/javascript" language="javascript">
window.history.forward(1);
document.attachEvent("onkeydown", my_onkeydown_handler);
function my_onkeydown_handler()
{
switch (event.keyCode)
{
case 116 : // F5;
event.returnValue = false;
event.keyCode = 0;
window.status = "We have disabled F5";
break;
}
}
</script>

Tarun.K.S · Accepted Answer · 2011-06-08T22:49:00

Solution 4

I would like you to see this excellent tip by Sandeep : http://www.codeproject.com/Tips/135121/Browser-back-button-issue-after-logout.aspx[^]

Hope it helped.

Posted 8-Jun-11 22:49pm

Tarun.K.S

Comments

JustWorking 9-Jun-11 8:42am

Check solution 3

how to prevent back button after logout in asp.net

7 solutions

Solution 2

Solution 7

Solution 1

Solution 4

Solution 3

Solution 5

Solution 8

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