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Heirarchial selections...

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    Heirarchial selections...

    On top of being beyond rusty with Alpha in general, I haven't really used it in years, so much of AA is brand new to me.

    I'm working with a large MySQL table, a couple million rows. This table contains data from several different cases; each case has multiple custodians; each custodian has one or more devices assigned to them.

    I'm trying to construct a selection process that works like this:

    The first list of data is just a list of cases, one column, CaseName. When one or more CaseNames have been chosen (probably via checkbox in a small grid), a second list or grid appears that shows all Custodians for the chosen CaseNames. When one or more Custodians have been chosen, a third list or grid appears with the Devices assigned to those Custodians. Choose the Devices of interest and the big grid of associated data appears.

    Generally speaking--I'm not asking for a blow-by-blow--how would you guys go about this?

    Huge thanks!
    Jerry Hatchett

    CERTIFIED COMPUTER EXAMINER
    LICENSED PRIVATE INVESTIGATOR


    Digital Forensics & E-Discovery

    Red Forensic
    Houston, TX

    #2
    Re: Heirarchial selections...

    Use the UX List for this, use the has parent option for the child list, in the lists select delay render until explicit refresh, turn on dynamic virtualization, turn on List Navigator and set the has pull-to-refresh on, you will need to set arguments for all lists other than the last one.

    Good luck.
    Insanity: doing the same thing over and over again and expecting different results.
    Albert Einstein, (attributed)
    US (German-born) physicist (1879 - 1955)

    Comment


      #3
      Re: Heirarchial selections...

      Thanks, Pete. Exactly the kind of high-level roadmap I was hoping for.
      Jerry Hatchett

      CERTIFIED COMPUTER EXAMINER
      LICENSED PRIVATE INVESTIGATOR


      Digital Forensics & E-Discovery

      Red Forensic
      Houston, TX

      Comment


        #4
        Re: Heirarchial selections...

        Hi again, Pete. Despite days tinkering with it on and off, I cannot get the second and third lists to show any records when I make a selection in the first list.

        Why would the first list need an argument? Maybe I'm misthinking, but it seems that the two child lists (lists #2 and #3) are the ones that would need the arguments?

        This is not a mobile app; is there an alternate method you can suggest for generating the explicit refresh?

        In any event, I've tried every possible combo I can think of, and still no joy. Can you think of any common culprits to look for?
        Jerry Hatchett

        CERTIFIED COMPUTER EXAMINER
        LICENSED PRIVATE INVESTIGATOR


        Digital Forensics & E-Discovery

        Red Forensic
        Houston, TX

        Comment


          #5
          Re: Heirarchial selections...

          If the first list does not have an argument (based on the primary key) then how is list2 to going to filter it's data against list one.
          Insanity: doing the same thing over and over again and expecting different results.
          Albert Einstein, (attributed)
          US (German-born) physicist (1879 - 1955)

          Comment


            #6
            Re: Heirarchial selections...

            You might want to also take a look at thread 10 on this post - it may help you understand filtering List with arguments.

            https://forum.alphasoftware.com/show...aruments-value
            Insanity: doing the same thing over and over again and expecting different results.
            Albert Einstein, (attributed)
            US (German-born) physicist (1879 - 1955)

            Comment


              #7
              Re: Heirarchial selections...

              Here you go this will explain it better.
              https://forum.alphasoftware.com/show...-FREE-tutorial
              Insanity: doing the same thing over and over again and expecting different results.
              Albert Einstein, (attributed)
              US (German-born) physicist (1879 - 1955)

              Comment


                #8
                Re: Heirarchial selections...

                Yeah, I had a DUH moment on the arguments. You were of course correct.

                Found one of Selwyn's videos in which he was doing exactly what I wanted to do. Started from scratch and repeated his moves and it's working. Well, almost...

                The culprit all along was my enabling MULTI-SELECT for the lists. The cascading doesn't work if that's enabled. Disable it and it works like a charm. The bad part is that I really need multi-selection.
                Jerry Hatchett

                CERTIFIED COMPUTER EXAMINER
                LICENSED PRIVATE INVESTIGATOR


                Digital Forensics & E-Discovery

                Red Forensic
                Houston, TX

                Comment


                  #9
                  Re: Heirarchial selections...

                  Cool
                  Insanity: doing the same thing over and over again and expecting different results.
                  Albert Einstein, (attributed)
                  US (German-born) physicist (1879 - 1955)

                  Comment

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