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Conditional fieldrule table lookup

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    Conditional fieldrule table lookup

    I am trying to enable a conditional table lookup on the field rules in order to conditionally determine what the lookup table should be, and then lookup the values of more then 1 field in the lookup record and copy it into the master table.

    What happens is, that you seem to be able to choose the browse to display for each table, but it does not stick!

    At the end, I can only do one of following 2:

    1- Choose for default browse on either lookup condition, that works.

    2- Choose for specific browse for 1 lookup condition, the other(s) will fail due to "browse not found" error, although specified and existing of course.

    Problem is, however the default browses work in the conditional field table lookup, you can not change the layout of those default browses and they look enormously amateurish.

    What to do?

    Using field lookup on the forum does not work either, because you can then only copy 1 field value to the master table, not for instance 5 or 6 field values in the selected record from the lookup table.

    I think the "not sticking" of the specific browse in the conditional field lookup is a bug, OR, the choice offered itself in the conditional field lookup is invalid and a bug.

    Do any of you have any experience with a conditional table lookup on the field rules, and succeeded in changing all browse layouts concerned?

    #2
    Re: Conditional fieldrule table lookup

    The conditional table lookup code is very old - version 1 vintage.

    There are various problems within it, but it hasn't made the shortlist of getting fixed.

    As I recall the maintenance of multiple items has most of the problems, but if you add a new condition and provide all of the specs, it'll work. Or to change an existing condition, I've deleted the old condition and readded it..

    Since you may be doing more maintenance than not, you may want to use a different approach that may or may be workable for your app.

    Have multiple fields in the table for each condition and use a conditional object on the form to pick with field does the lookup.
    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


      #3
      Re: Conditional fieldrule table lookup

      Originally posted by Al Buchholz View Post
      The conditional table lookup code is very old - version 1 vintage.

      There are various problems within it, but it hasn't made the shortlist of getting fixed.

      As I recall the maintenance of multiple items has most of the problems, but if you add a new condition and provide all of the specs, it'll work. Or to change an existing condition, I've deleted the old condition and readded it..

      Since you may be doing more maintenance than not, you may want to use a different approach that may or may be workable for your app.

      Have multiple fields in the table for each condition and use a conditional object on the form to pick with field does the lookup.
      Hi Al !

      Thanx for your response.
      Your idea won't work in this particular case, since the lookup occurs on the form from within an embedded browse....
      So the lookup needs to be able to change perspective on a row base.
      Row 1, condition A is valid, the lookup enters table X
      Row 2, condition B is valid, the lookup enters table Y
      Something like that.

      I agree with you that it could very well be an issue of "sticking" changes.... I know there were more then one of those issues of changes you would make somewhere and who then (after more changes) would not "stick" at a given point.
      It is well worth a try!

      Do you have any experience in a conditional lookup with designated browses instead of the default one?

      Comment


        #4
        Re: Conditional fieldrule table lookup

        Originally posted by M.Richard View Post
        Do you have any experience in a conditional lookup with designated browses instead of the default one?
        There must be more to the question than what you've said.

        I don't have issues with the lookup via a default browse or saved browse..

        Are you asking about an embedded browse vs a designated browse?
        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: Conditional fieldrule table lookup

          Originally posted by Al Buchholz View Post
          There must be more to the question than what you've said.

          I don't have issues with the lookup via a default browse or saved browse..

          Are you asking about an embedded browse vs a designated browse?
          I was asking about the conditional table lookup, attached to the field rules of a table, the field to which the conditional table lookup is attached is present in an embedded browse on a form.

          So, when you 'walk' through the fields of the embedded browse on the form, the conditional lookup is triggered by a value in a previous field in the row, which fills the other fields in that row. So each row can have a different lookup table that presents the content for the rest of the fields in that browse.

          Problem is, that I do not seem to be able to let the specified browse layout in the field rules conditional lookup setting "stick". As soon as I go the the second row in the conditional table lookup settings, the entered layout for the browse to use gets blanked out again. As it defaults to the 'default browse', that seems to be the only option that works for now.

          So my question was, if you had been able at any given moment in your programming career, to get this conditional table lookup to work with specific browses attached instead of the default browse.

          I tried to disable that field rule as you suggested, but that did not work either, because when I wanted to reinstall it after saving with the option 'no lookup' it just returned the old settings, so it obviously did not delete the code when making another choice then "conditional table lookup". I remember this being a problem in other occasions as well. You think the code gets deleted, but it just is saved in the background of the module, and whenever you rechoose the option, the code just pops back up.

          Point is, that it is a whole lot of work to program this conditional table lookup by hand on the form, for instance by creating a button in a row, as opposed to simply specifying the conditional table lookup in the field rules.....
          Not to speak about the number of specific problems you will meet when trying to program it by hand.....

          So I was just wondering if you EVER got this to work with specific browses or only with default browses.

          Comment


            #6
            Re: Conditional fieldrule table lookup

            Originally posted by M.Richard View Post
            I think the "not sticking" of the specific browse in the conditional field lookup is a bug,
            I agree - I see the same thing.

            Sorry I was so dense before. Thanks for the detailed explanation...
            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: Conditional fieldrule table lookup

              I wonder if this is related to the change in V9 (from V8) in that you can't retain an index on a browse unless you create a saved browse.

              Comment


                #8
                Re: Conditional fieldrule table lookup

                Originally posted by robert View Post
                I wonder if this is related to the change in V9 (from V8) in that you can't retain an index on a browse unless you create a saved browse.
                That's the whole point: you can't make a saved browse and then stick it to the conditional table lookups settings...... it won't stick! It will only allow you to use the default browse.

                Comment


                  #9
                  Re: Conditional fieldrule table lookup

                  Originally posted by robert View Post
                  I wonder if this is related to the change in V9 (from V8) in that you can't retain an index on a browse unless you create a saved browse.
                  Robert

                  I think these two issues are different....
                  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


                    #10
                    Re: Conditional fieldrule table lookup

                    okay, just thought I'd bring it up. In reading, I was getting lost in whether he was using a default or saved browse. sounds like something that should be addressed to tech support.

                    I didn't upgrade to 9 just because I'd have to go create a bunch of saved browses. I use conditional lookups with V8 without issue except for one type of conditional lookup that is discussed in another thread.

                    Comment


                      #11
                      Re: Conditional fieldrule table lookup

                      Originally posted by robert View Post
                      sounds like something that should be addressed to tech support.
                      No point, V9 is done.
                      There can be only one.

                      Comment


                        #12
                        Re: Conditional fieldrule table lookup

                        okay, just thought I'd bring it up because it's like not being able to make a index stick in a default browse. Sounds like something to discuss with tech support.

                        I didn't upgrade to 9 just because I'd have to go create a bunch of saved browses. I use conditional lookups with V8 without issue except for one type of conditional lookup that is discussed in another thread.

                        Comment


                          #13
                          Re: Conditional fieldrule table lookup

                          Yeah, well, you can check this out with TechSupport until you weigh an ounce, but there ain't gonna be any update to address it anymore. V10 is the word now....
                          I had to abandon the conditional table lookup in the end, and work with separate embedded browses on the form, attached to separate tables. As always, a workaround was necessary and did the job.
                          The conditional table lookup however did not work with saved browses whatever......

                          Comment


                            #14
                            Re: Conditional fieldrule table lookup

                            M. Richard,

                            I'm having the same problem with conditional lookups and I'm glad you already addressed the problem in this thread. I particularly like your use of the words "enormously amateurish" to describe the appearance of the selection browse.

                            Two questions.

                            First, if you don't mind describing this, how would you use two separate routines with two separate lookup tables to accomplish the same thing as a conditional lookup? I'm using a field where the user makes a selection. Depending on the user's choice, one of the lookups fires. It's very simple and functions well, but is very unattractive to the end user.

                            Second, do you know if v10 corrected this problem? Someone mentioned that the code for conditional lookups dates back to v1. It looks it. If v10 fixed it, that would certainly justify the upgrade.

                            Thanks for your help,
                            Tom

                            Comment

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