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ActiveX control events on Web Server

Posted on 2002-04-12
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Last Modified: 2013-12-24
I am using a timer ActiveX control on the server.  I am trying to get the "Timer" event but it is not working.  Can i not get custom events from controls in Visual Interdev?  If so...how?
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Question by:emidiod
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merlinb earned 400 total points
ID: 7437539
This does not make sense. Once a response is sent back the channel is closed - its as though the user does not exist.  So what would the timer do on the server?

It makes sense on the client - but then Netscape 4 & IE 5 have script and DHTML timing facililties.  Look at the setInverval method in javascript.

If you use DTC's then you have to 'advise' the dtc to raise additional events.  This simply adds an on<event> atribute to the control IF a corresponding server-side event handler has been coded.

You can pick up these DTC events in the client (ie before the server round-trip) by including th following client-side function:

function thisPage_onbeforeserverevent(i_strObject, i_strEvent) {
...client side code...
}

The two parameters are strings, that name the object raising the event, and the event name:

  if (i_strObject == 'pbMyButtonDTC'
        && i_strEvent == 'onclick')
  {
    ...handle the click on the client...
    ...then prevent the server-round-trip...
    thisPage.cancelEvent = true;
  }
     
This code also shows how to stop the page from being submitted.
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