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How to change argument value of FORM

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  • How to change argument value of FORM

    Hi,

    I have one question about forms that are created on link table based on arguments.

    At the initiial openning of then form value for argument is submited. An d that is OK.

    On still opened form i would like to change value of argument in order to change record set that it brings on the form.

    Let me explane.

    If ma form have stores based on argument - cityID, witch value defined witch cities stores I would like to see, and I set on openning of the form cityID = '5' ( ID of New York),
    and then wothout closing form I would like to change citi DI of .... 6 (ID of LA) .

    How could I change on already opened form argument value to change record set displayed on form

    Link tables are on MySQL DB tables.
    Dragan Milosavljevic
    ITPartner

    dragan.milosavljevic@itpartner.rs
    http://www.itpartner.rs

  • #2
    Re: How to change argument value of FORM

    I'm not familiar with using arguments to control the selection of records visible on a form. Are you using FORM.VIEWQUERIED() with arguments to open it?
    There can be only one.

    Comment


    • #3
      Re: How to change argument value of FORM

      Hi Stan,

      when you create active link table (MySQL source) you have option to create arguments (to use in WHERE clause) and later when opening the form (created based on that king link table ) you must past value for that argument. So quantity of record on form is limited with value submitted to defined argument.
      Dragan Milosavljevic
      ITPartner

      dragan.milosavljevic@itpartner.rs
      http://www.itpartner.rs

      Comment


      • #4
        Re: How to change argument value of FORM

        Since you have limited the active link definition to the subset of records satisfying the argument, I don't believe you will be able to do what you want. If you leave the where clause out of the link definition and instead specify the argument in the form filter then you can change the filter on-the-fly.

        I tested this by creating an active link table to the AlphaSports customer table (mdb), no arguments. Created a form based on the active link table with the filter bill_state_region = "MA". Opening the form allows viewing only of the records where bill_state_region is "MA". I put a button on the form with the code

        parentform.BaseQueryRun("bill_state_region = "+quote("NY"))

        Pressing this button removes the viewing of "MA" records and only displays "NY" records.

        If you put a variable on the form or other means of specifying which state to view then you can pass that to the button script with

        parentform.BaseQueryRun("bill_state_region = "+quote(objectname_of_state_variable.value))

        You would of course replace objectname_of_state_variable with the actual object name.
        There can be only one.

        Comment


        • #5
          Re: How to change argument value of FORM

          Dragan

          It sounds like it should be a problem to close the current form and then reopen an new form.

          On the other hand it may not be an issue.

          I built a system similar to Stan's and appended records until I have almost 2,000 customers

          Then I built a form based on your type of argument based active linked table.

          I put a button on the form to open another instance of the form and then close the current form.

          So it does flash for a moment, but quickly retrieves the new record I want.

          Most other ways use an Alpha local filter that will slow with the size of the table.

          Try it, you may like 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


          • #6
            Re: How to change argument value of FORM

            Do active link tables use indexes?
            Robin

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

            Comment


            • #7
              Re: How to change argument value of FORM

              Originally posted by MoGrace View Post
              Do active link tables use indexes?
              It gets more sophisticated with real databases.

              An SQL is submitted and the optimizer decides how to use the indexing.
              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


              • #8
                Re: How to change argument value of FORM

                Thanks, Al.
                Robin

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

                Comment


                • #9
                  Re: How to change argument value of FORM

                  Originally posted by MoGrace View Post
                  Thanks, Al.
                  Although some databases allow explicit indexing choices. Usually not a good idea, but never say never.
                  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: How to change argument value of FORM

                    Hi Stan,

                    I'm using so long link tables with arguments, that a forgot filters on forms.
                    Thanks I'm gonna try that.

                    Although it would be much more 'elegant' solution if link tables argument could be changed on go.

                    "BaseQueryRun" is something I use on my early development, at my start of using AlphaFive ver.9 , 6-7 years ago.
                    A lot of things from that time I forgot.

                    Anyway thanks, very much.
                    Dragan Milosavljevic
                    ITPartner

                    dragan.milosavljevic@itpartner.rs
                    http://www.itpartner.rs

                    Comment


                    • #11
                      Re: How to change argument value of FORM

                      Hi Al,

                      I thought I'd do something like that.

                      But, if MySQL table have 2-3 million records and would be much more over time, I don't know if the time of switching form would be the issue. And that solution looks like poor solution to me. Don't be offended , this was not my intention. I'm some king of perfectionist. "the goal is as important as the way to it".

                      I have demanding users who would certainly not mind flashing forms. That is my problem, of course.

                      Thank Al.
                      Dragan Milosavljevic
                      ITPartner

                      dragan.milosavljevic@itpartner.rs
                      http://www.itpartner.rs

                      Comment


                      • #12
                        Re: How to change argument value of FORM

                        Originally posted by draganksg View Post
                        Hi Al,

                        I thought I'd do something like that.

                        But, if MySQL table have 2-3 million records and would be much more over time, I don't know if the time of switching form would be the issue. And that solution looks like poor solution to me. Don't be offended , this was not my intention. I'm some king of perfectionist. "the goal is as important as the way to it".

                        I have demanding users who would certainly not mind flashing forms. That is my problem, of course.

                        Thank Al.
                        No offense taken.

                        Have you tried this method so see how it performs?
                        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


                        • #13
                          Re: How to change argument value of FORM

                          Hi Al,

                          No but I will, and I'll send you message how it performs.
                          Dragan Milosavljevic
                          ITPartner

                          dragan.milosavljevic@itpartner.rs
                          http://www.itpartner.rs

                          Comment

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