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Crash causes form to disappear

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    Crash causes form to disappear

    I am working on a form and for some reason Alpha decides to quit. I have faithfully saved my form as I go along working in the design, but did not do a backup as frequently as I probably should.

    When I open Alpha v9 again after the crash, my form is no longer available and I am sent to a default version of the form I was previously working on. There is a note saying it can't find the specific form and it will use a default form instead.

    If I go to the control panel and click on the form I get a message that says, "Invalid structured store image."

    Is there any reason why a form should disappear due to an application crash?

    Has anyone else had this occur to them?

    If this has been brought up recently, I apologize, but I haven't come across such an issue on the forum, as far as I can remember.

    Thanks.
    "Ollie, remember how dumb I used to be? Well, I'm much better now."

    Pete

    #2
    Re: Crash causes form to disappear

    Hi Pete,

    I have had this very same thing happen in both versions 5 and 8 that I use...sorry to say but the majority of the time a backup was the only fix. This happened much more often when my scripting and script placement were the root cause and Alpha would crash quite regularly on me...it has been several months since the last time. Before using a backup, you may want to check for any $$ in file names of your db which can be either a temp file not deleted or a corrupt *dd_ usually .ddm I have noticed. Corruption can also be noticed by an inordinately large file found by sorting by size.

    Not much help I know.....
    Mike
    __________________________________________
    It is only when we forget all our learning that we begin to know.
    It's not what you look at that matters, it's what you see.
    Henry David Thoreau
    __________________________________________



    Comment


      #3
      Re: Crash causes form to disappear

      Thanks for the reply. I just find it weird that the form would no longer hold, even after saving it properly and using it for an extended period of time without a probem. I have no $$ files and the largest file is only 581KB. I can't pinpoint why a crash occurs, but the crashes only happen when I am creating an action script or making a design change on the existing form.
      "Ollie, remember how dumb I used to be? Well, I'm much better now."

      Pete

      Comment


        #4
        Re: Crash causes form to disappear

        Pete

        Another option is to duplicate the table/set that the form (or object) is based on and see if the form appears in the new table/set.

        Some corruption can occur in the table/set structure files and the duplication process can fix that...

        I've had success with this method the few times that I've needed to use it...
        Al Buchholz
        Bookwood Systems, LTD
        Weekly QReportBuilder Webinars Thursday 1 pm CST

        Occam's Razor - KISS
        Normalize till it hurts - De-normalize till it works.
        Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
        When we triage a problem it is much easier to read sample systems than to read a mind.
        "Make it as simple as possible, but not simpler."
        Albert Einstein

        http://www.iadn.com/images/media/iadn_member.png

        Comment


          #5
          Re: Crash causes form to disappear

          Al:
          Thanks for that suggestion. I will try it the next time. I am just puzzled as to why the form would just disappear. If there is a problem in design or code, should it not still be visible, but then not do what I want it to do? I guess I am thinking more of the form as being a picture, rather than a bunch of code.
          "Ollie, remember how dumb I used to be? Well, I'm much better now."

          Pete

          Comment


            #6
            Re: Crash causes form to disappear

            Originally posted by trackmanpete View Post
            Al:
            I guess I am thinking more of the form as being a picture, rather than a bunch of code.
            The form code is actually stored a dbf table with character fields and a memo field. If the internal structure of that table is compromised, then the form or other objects may not show.....
            Al Buchholz
            Bookwood Systems, LTD
            Weekly QReportBuilder Webinars Thursday 1 pm CST

            Occam's Razor - KISS
            Normalize till it hurts - De-normalize till it works.
            Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
            When we triage a problem it is much easier to read sample systems than to read a mind.
            "Make it as simple as possible, but not simpler."
            Albert Einstein

            http://www.iadn.com/images/media/iadn_member.png

            Comment


              #7
              Re: Crash causes form to disappear

              Has anyone else had the problem of the 'disappeared' form name being unusable cuz A5 says that it still exists even tho it does not show up under the forms tab??????

              I was just adding two frames to the form and got 'Xbasic parser error' and that's all she wrote -- form gone, many hours of development work gone..... patience gone.

              Seems A5 has had this problem for a very long time...

              D

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