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Editorial Team
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Asked: 2026-05-13T16:30:53+00:00

I know that if I do a full post back to the server through

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I know that if I do a full post back to the server through a button click or other server control, that the internal session timeout is reset.

However, if I have a button that is wrapped within an UpdatePanel, or another piece of code wrapped within an AJAX post back to the server, will the internal session timeout be reset as well?

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1 Answer

  1. Editorial Team

    from http://bytes.com/topic/asp-net/answers/654213-ajax-updatepanel-not-resetting-iis-session

    The updatepanel uses XMLHTTPRequest to
    get the html to display in the panel.
    XMLHTTPRequest will send the session
    cookie, but on response it does not
    read and update the browser’s session
    cookie, so after 20 mins the session
    cookie times out (in the browser) and
    is no longer sent to the server. you
    can switch to cookieless sessions or
    update the browser cookie using a
    server request via an img or iframe.

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