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Browse scrolling bug?

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    Browse scrolling bug?

    I have a form with 2 browses that works perfectly onder V9 but under V10.5 it is giving me quite a headache.
    The left browse is based on the parent table in the set. The form is based on a 1 to many set with one child table. After selection of a record in the left browse I can browse through the detail records in the right browse using the vertical slider (area) or PGUP, PGDN, arrow up or arrow down. Clicking in the empty area of the vertical slider causes the slider to move up or down rapidly like using PGUP and PGDN.
    The problem seems to appear when selecting another record in the left browse. At first nothing seems to be wrong but when selecting another record in the left Browse the right browse initially shows the correct records. Once I start scrolling records of a previous parent are shown.

    What I see in V9 is that when a record is selected in the left browse, the right browse is filled a fraction later.
    In V10 it looks kind of that the right browse is ahead of the left browse.

    I wonder if this is some kind of bug?
    Attached Files
    Jo Hulsen
    Dommel Valley Solutions
    The Netherlands

    #2
    Re: Browse scrolling bug?

    In order to get some real help with this,I think you should submit a sample application for
    others to try.
    John

    Comment


      #3
      Re: Browse scrolling bug?

      Took me quite some time to prepare a sample as it concerns real life data.
      I am running the latest version of V10.5 and have tested on 2 PC's, one with XP and the other with Windows V7
      The browses have been recreated under V10.
      In the set I have had RI off and on.
      Some instruction to quickly see the issue:
      - Open form Module_Management
      - select 1st record (401) in left browse (is default)
      - browse through right browse all the way to the bottom (and back if you like)
      - now select 3rd record (403) in left browse
      - browse through right browse all the way to the bottom (and back if you like)
      - now select 2nd record (402) in left browse
      - browse through right browse by using arrow down. Observe the value in the colum CON_ID when you reach the bottom.
      Very likely the scrolling stops for a moment and then continues again by displaying records from 403.
      The same result can be reached by using PGDN or clicking in the empty space of the vertical slider.

      To me there seems to be a certain pattern. When going in sequential order through the left browse it seems to be fine.
      Once selecting a previous record in the left browse the problem seems to appear.
      Attached Files
      Jo Hulsen
      Dommel Valley Solutions
      The Netherlands

      Comment


        #4
        Re: Browse scrolling bug?

        I have been reading again what it says in Alphapedia: http://wiki.alphasoftware.com/Browse...+in+Version+10

        "The Browse will refresh automatically when data is changed in another session in most cases and you will not have to resynch or refresh the Browse"

        Decided to insert a refresh display in the OnRowChange event of the left browse and tested again.
        That seems to have solved my problem.

        Thanks,
        Jo Hulsen
        Dommel Valley Solutions
        The Netherlands

        Comment


          #5
          Re: Browse scrolling bug?

          I can duplicate what you describe, using your form
          however
          I created a new form, simple, but similar to yours, and cannot duplicate the behavior

          can't find any reason why
          but suggest that you make a new form, at first simple, with two browses, and see if that fixes the issue

          forms sometimes become corrupt and have to be redone from scratch
          Cole Custom Programming - Terrell, Texas
          972 524 8714
          [email protected]

          ____________________
          "A young man who is not liberal has no heart, but an old man who is not conservative has no mind." GB Shaw

          Comment


            #6
            Re: Browse scrolling bug?

            On the other hand, the form used in the test seems to be a new form from the one in the screenshot.

            I tried these two methods together in the OnChange for browse1 and it seems to work.

            browse2.resynch()
            browse2.repaint()
            Robin

            Discernment is not needed in things that differ, but in those things that appear to be the same. - Miles Sanford

            Comment


              #7
              Re: Browse scrolling bug?

              were you able to reproduce the error on his form, first?
              there should be no reason to resynch, etc - the set would have to fail for that behavior
              It could be that he has edited the form many times and has an error in its dictionary
              Cole Custom Programming - Terrell, Texas
              972 524 8714
              [email protected]

              ____________________
              "A young man who is not liberal has no heart, but an old man who is not conservative has no mind." GB Shaw

              Comment


                #8
                Re: Browse scrolling bug?

                Yes, the error was exactly as he described when I tried to go backwards in the index for browse1, it still showed records as I paged browse2 for the previous synch.
                Robin

                Discernment is not needed in things that differ, but in those things that appear to be the same. - Miles Sanford

                Comment


                  #9
                  Re: Browse scrolling bug?

                  Robin,

                  It is the same form, just changed the background.
                  The refresh display solved the issue.

                  Thanks,
                  Jo Hulsen
                  Dommel Valley Solutions
                  The Netherlands

                  Comment


                    #10
                    Re: Browse scrolling bug?

                    Originally posted by martinwcole View Post
                    It could be that he has edited the form many times and has an error in its dictionary
                    Martin,

                    There have been some changes in the right browse recently, so your remark makes sense.
                    On the other hand I don't understand why the exact same form seems to work perfectly under V9.

                    Just two weeks ago I upgraded the application to V10.5 and after a couple of days I discovered the issue myself.
                    So I consider myself lucky to being able to repair the issue before the client could become aware of this.

                    Thanks all for your support.
                    Jo Hulsen
                    Dommel Valley Solutions
                    The Netherlands

                    Comment


                      #11
                      Re: Browse scrolling bug?

                      glad you got it working - sometimes things just don't make sense with computers

                      a good rule of thumb is to go to the default form to prove or test stuff like that
                      Cole Custom Programming - Terrell, Texas
                      972 524 8714
                      [email protected]

                      ____________________
                      "A young man who is not liberal has no heart, but an old man who is not conservative has no mind." GB Shaw

                      Comment


                        #12
                        Re: Browse scrolling bug?

                        Another thing to try would have been to make a new test form with simple unadorned browses and see if the unwanted behavior persists.If it doesn't that indicates there is something amiss with your original form.A5v9 might have been more unforgiving with the form anomaly than a5v10.5.I did this and the new form behaved correctly.

                        Comment


                          #13
                          Re: Browse scrolling bug?

                          John,
                          Thanks for your advice, I need to give that a shot.
                          I thought the issue was solved! Now it seems to appear at irregular times.
                          Giving up is not in my dictionary, so feedback following soon......
                          Jo Hulsen
                          Dommel Valley Solutions
                          The Netherlands

                          Comment


                            #14
                            Re: Browse scrolling bug?

                            Starting completely from scratch I have re created the set and the form and it looks like all is well now.
                            Jo Hulsen
                            Dommel Valley Solutions
                            The Netherlands

                            Comment


                              #15
                              Re: Browse scrolling bug?

                              I'm having similar (the same?) problems with v.11 scroll bars on browses when used with sets. ~ Click here to go to v.11 thread where I've included a video & uploaded database examples.
                              Robert T. ~ "I enjoy manipulating data... just not my data."
                              It's all about the "framework." (I suppose an "a5-induced" hard drive crash is now in order?)
                              RELOADED: My current posting activity here merely represents a "Momentary Lapse Of Reason."

                              Comment

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