How to set a correct session expired for my code?

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Hi,

I have a code that doing the popup message for the session expired, as following. However, this code cannot do a correct counting session. When run the program, it will direct popup the session expired message which didn't follow the time that I had set. I know that why my message will popup so early because in my Page.ClientScript.RegisterStartupScript(cstype, csname, strconfirm, false);
I didn't add in the "timeout" so it is not executed as I want, but how to add it? when I try to add it in, it will result as input format error. Can someone assist me for this problem?

C#

string csname = "timeoutWarning";
 Type cstype = this.GetType();
 if (!Page.ClientScript.IsStartupScriptRegistered(cstype, csname))
 {
     var timeout = HttpContext.Current.Session.Timeout * 60 * 1000;
     string strconfirm = "<script>if(!window.confirm('Your login session is about to expire. Do you want to extend it?')){window.location.href='../login.aspx'}</script>";
     Page.ClientScript.RegisterStartupScript(cstype, csname, strconfirm, false);
 }

Thanks & regards,
NSP

Posted 2-Aug-12 16:56pm

Nguang Sing Ping

Updated 2-Aug-12 17:31pm

Kenneth Haugland

v3

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3 solutions

Solution 1

In Javasctipt you can do something like this..

JavaScript

var timeout = '<%= Session.Timeout * 60 * 1000 %>';
 var timer = setInterval(function() { timeout -= 1000; if (timeout == 1000) { clearInterval(timer); alert('Your session is about to expire!') } }, 1000);

Posted 2-Aug-12 19:13pm

virang_21

Solution 2

sorry that I'm writing the code in the code behind, so how do I write the javascript that you provided into the cs format?

Posted 2-Aug-12 20:24pm

Nguang Sing Ping

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Nguang Sing Ping · Accepted Answer · 2012-08-02T23:22:00

I have a solution for my question as following:

XML

string csname = "timeoutWarning";
           Type cstype = this.GetType();
           if (!Page.ClientScript.IsStartupScriptRegistered(cstype, csname))
           {
               var timeout = HttpContext.Current.Session.Timeout * 60 * 10000;
               //string strconfirm = ("<script>if(!window.confirm('Your login session is about to expire. Do you want to extend it?')){window.location.href='../login.aspx'}</script>");
               string strconfirm = "<script>" +
                   "window.setTimeout('SessionTimeOutHandler()', 10000);" +
                   "function SessionTimeOutHandler() { " +
                   "if(window.confirm('Your login session is about to expire' ))" +
                   "{window.location.href='../login.aspx'}" +
                   " } </script>";
               Page.ClientScript.RegisterStartupScript(cstype, csname, strconfirm, false);

           }

However, now I have a question that how to repeat shows the popup message when it is expired?