Ajax Session timeout problem

Question

_{Tuesday, December 9, 2008 1:04 PM}

Hi,

 I have some problems when using AJAX with updatepanels.

I have an ASP.NET webapplication with a login that uses form authentication with the timeout set to 5 min. After 5 min of idle the site should be redirected to the login.aspx page. My problem is that after using the site for 5 minutes when clicking on contents inside an updatepanel I get a messagebox with the following error:

A Runtime Error has occurred.
Do you wish to Debug?

Line: 4723
Error: Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 12031

 I think that it has something to do with the ajax updatepanel since when I remove the updatpanels this problem does not appear. Instead the site is redirected to login.aspx as expected.

When searching on the problem on google I see alot of people having similar problem, but I haven't found suitable solution. Any suggestions?

All replies (3)

_{Wednesday, December 10, 2008 12:43 AM ✅Answered}

 you can refer the following link

http://forums.asp.net/t/1123365.aspx

and also

http://forums.asp.net/t/1130625.aspx

_{Thursday, December 11, 2008 2:35 AM ✅Answered}

I found a solution:

Set timeout for form authent. and session to same value in this case 35 minutes:

<system.web>
<!--Handles form authent time out-->
<authentication mode="Forms">
   <forms name=".admlog" loginUrl="~/Login.aspx" path="/" protection="All" timeout="35" slidingExpiration="true">
      <credentials passwordFormat="Clear">
         <user name="admin" password="admin"/>
      </credentials>
  </forms>
</authentication>

<!--Handles session time out-->
<sessionState timeout="35" mode="InProc" cookieless="false"/>
</system.web>

Then use the following example to implement a graceful redirect of the user:
http://www.codeproject.com/KB/session/redirecttimeout.aspx

I made some modification to the CheckSessionTimeout() method letting the user be able to refresh the session timeout (see bolded code):

private void CheckSessionTimeout()
{
   string msgSession = **"Warning: The site has been inactive for more then 30 minutes. You will be automatically redirected to login site after 5 minutes unless you refresh the session. Do you want to refresh session?
**   //time to remind, 5 minutes before session end
   int int_MilliSecondsTimeReminder = (this.Session.Timeout * 60000) - 5 * 60000;
   //time to redirect, 5 miliseconds before session end
   int int_MilliSecondsTimeOut = (this.Session.Timeout * 60000) - 5;
  
   string str_Script = @"
   var myTimeReminder, myTimeOut;
   clearTimeout(myTimeReminder);
   clearTimeout(myTimeOut); " +
   "var sessionTimeReminder = " + int_MilliSecondsTimeReminder.ToString() + "; " +
   "var sessionTimeout = " + int_MilliSecondsTimeOut.ToString() + ";" +
   "function doReminder() "+
   "{ "+
      "if(confirm('" + msgSession + "')) window.location.href=window.location.href; "+
   "}" **+
**   "function doRedirect(){ window.location.href='Default.aspx'; }" + @"
   myTimeReminder=setTimeout('doReminder()', sessionTimeReminder);
   myTimeOut=setTimeout('doRedirect()', sessionTimeout); ";
  
   ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "CheckSessionOut", str_Script, true);
}

_{Wednesday, September 8, 2010 8:37 AM}

http://sysisundefined.blogspot.com/2010/09/unknown-error-occurred-while-processing.html