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Bonus TIPS for Successful Posting

Try a Search First
It is highly recommended that a Search be done on your topic before posting, as many questions have been answered in prior posts. As with any search engine, the shorter the search term, the more "hits" will be returned, but the more specific the search term is, the greater the relevance of those "hits". Searching for "table" might well return every message on the board while "tablesum" would greatly restrict the number of messages returned.

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Event Firing Anomalies

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    Event Firing Anomalies

    Has anyone else noticed, depending on the method used to load a form, that some form-level events will fire, while others will not? I see the greatest differences between forms loaded by issuing form.view() and form.view(,"Popup"). If I am not mistaken, there are several events that will not fire, such as OnActivate, OnDeactivate, etc., when working with a popup form. I suspect there is some limitation within the Windows OS itself that may be the reason for this behavior. Can anyone expound upon this?

    Tom Lyon

    #2
    RE: Event Firing Anomalies

    Tom,

    Yes, there are many event firing anamolies in Alpha 5. Embedded Browses and embedded forms, switching between browse and view (using F8, menus and similar xbasic methods), pop-up forms have all anamolies in the order, number of times and how they fire and whether they even fire! You can't even use the trace window's check box to actively trace these, as sometimes the event fires with the name of say, the topparent in the trace window (In other words it lies!!)

    The only way to be absolutely sure what is firing and when is to place a trace.writeln() with a unique message to indicate what is happening. I actually create a new traceevent(message text) function that I can disable quickly by changing the one function so I can track this when I need to.

    And, yes, I'd like to see all the events firing each and every time, and at the right times.

    Also, you can use the Activate events as an init event by counting whether you are on the 1st time through or not. Fetch events can also be used with a counter to perform 1 time only events (these don't always fire either).

    Regards,

    Ira J. Perlow
    Computer Systems Design & Associates
    [email protected]
    Regards,

    Ira J. Perlow
    Computer Systems Design


    CSDA A5 Products
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    Comment


      #3
      RE: Event Firing Anomalies

      you said:

      Also, you can use the Activate events as an init event by counting whether you are on the 1st time through or not. Fetch events can also be used with a counter to perform 1 time only events (these don't always fire either).

      Ooooh, great idea. That will definitely help in a pinch. Thanks for the pointer.

      Tom Lyon

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