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Editorial Team
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Asked: 2026-05-12T14:52:41+00:00

I am needing to create something like a lock timer(a little thing that just

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I am needing to create something like a lock timer(a little thing that just updates a lock time in a database). I thought the Timer control would suite my needs, but whenever the Timer control causes a partial post back, recently typed text in a textbox can disappear(inbetween the post back begin and post back end) and it loses focus.

Because this is only a lock timer, I do not need to refresh any part of the screen, I basically just need to tell the server “hey, don’t free my lock, I’m still on this page”. So is a Timer control even necessary? Is there an easier way to do this is pure javascript? The only thing I need to know is an ID, which could be kept as a hidden field(and therefore accessible from javascript by DOM)

anyone have any input on how to tune the timer control or a quick javascript way to do it?

edit:
also, I have the updatepanel that contains the timer control outside of the update panel containing the textbox control

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1 Answer

  1. Editorial Team

    If I understand it correctly you need a method which will update the datetime in the database at periodic intervals.

    For that you can simply use Ajax. The window.setInterval is a JavaScript function which will fire a piece of code at regular intervals. 

    window.setInterval(foo,5000);

    The above code fires the foo method every 5 seconds.

    The only thing you need to lookup is how to call the database. Since, you are already using MS Ajax I suggest you check out ScriptManager control which contains a section for services. Check out the following post which consists of a simple example of how to call WebService methods using MS Ajax:

    http://azamsharp.com/Posts/83_Using_FireBug_Profiler_to_Dig_Deep_into_MS_AJAX_and_JQuery_API.aspx

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