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ASP.NET 2.0 - ImageButton - strange issue

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  • User profile image

    Hi Everyone,

    I am facing one strange issue with the ASP.NET 2.0 ImageButton control.

    ImageButton is loosing it's OnClick event when the system gone to idle state.

    UI implementation:
    -> I have an ImageButton with OnClick event.
    -> The session timeout is 20 minutes.
    -> One Javascript timer with 10 minutes time interval is calling a function to keep the session alive.

    It is working fine but failed in the following scenario.

    Test Scenario:
    -> Enter some data in the web form.
    -> Lock and keep the system idle for 30 minutes.
    -> Unlock the system and click the image button to submit the data.

    Amazingly, it is just reloading the page even the IsPosBack is true, but not invoking the OnClick event.

    If I use ASP Button instead ASP ImageButton it is posting the data and invoking the OnClick event to save the data.

    I hope I explained well.

    Please share with me if you have any solution.

    Thanks in advance,

  • User profile image

    This looks more like a browser issue than an issue with Have your tried it with Firefox or Opera?

  • User profile image

    The javascript 'keep alive' timer sounds dodgy. Hows is it keeping the session alive?

  • User profile image

    Curious are you doing an AJAX callback? Its a tough issue to dissect because the page lifecycle can be delicate at times when you try to cercumvent certain events.

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