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Field Rule Event Problem

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  • Field Rule Event Problem

    I have an embedded table on a form.

    Field3 of the embedded table has a lookup field rule. If the user selects a lookup value for Field3, Field3 and Field4 of the table are filled in.

    When the user moves to the next row of the embedded table, the default value for Field3 is the value of Field4 in the previous row of the table.

    I've tried numerous method and can not get this to work reliably. I'm attempting to set a variable using the events tab on Field4.

    lastfield4 = alltrim(table->field4)

    I've placed this code, one at a time, in both the OnEditField and OnWroteField with mixed results.

    The result of OnEditField, the variable is set by the lookup value. If the user changes the value of the lookup in Field4, the variable keeps the original lookup value.

    The OnWroteField, the variable is only set if the user types in data. Accepting the lookup value yields a blank variable.

    lastfield4 = " "

    In both cases, the cursor passes through both Field3 and Field4, in my case while using the enter key.

    TIA

    Ron
    Alpha Anywhere v3.5
    Version 12.3, Build 2999
    MySql56 & DBF's

    Alpha 4, 5, Anywhere

    Ron Anusiewicz

  • #2
    RE: Field Rule Event Problem

    Ron,

    Have you tried

    previous(field4)

    as the default expression for field3? (i.e. using the data entry tab of the field rules dialog, instead of the events tab).

    -- tom

    Comment


    • #3
      RE: Field Rule Event Problem

      Hi Tom,

      The previous function only works if all data is entered sequentially.

      I need a method that reads what is in Field4 after the cursor leaves Field4 and sets the variable LastField4. According to the manual, OnWrote Field should work, but it only works if the user types in text, not if the user accepts the default value.

      Is this a BUG?

      I guess there needs to be a new event, ReadFieldAfterCursorLeavesField.

      Does anybody have any ideas. Can I make a function that will do this?

      TIA

      Ron
      Alpha Anywhere v3.5
      Version 12.3, Build 2999
      MySql56 & DBF's

      Alpha 4, 5, Anywhere

      Ron Anusiewicz

      Comment


      • #4
        RE: Field Rule Event Problem

        Ron,

        when you said you wanted the value of Field3 to match the previous row's value of Field4, I assumed data entry would be sequential, and that you were talking about entering a new record on the new row. Guess I still don't understand what you need. Sorry.

        How about posting a working model, with a roadmap (text file) explaining exactly how you want the browse object to behave during data entry?

        -- tom

        Comment


        • #5
          RE: Field Rule Event Problem

          Hi Tom,

          Yes, the entries are squential in the table which is embedded in a form. As long as the new form entry and the embedded table is squential, everything is all right. However, if a new form entry is indexed prior to the last form entry in the current index, previous doesn;t work for the embedded table as previous is looking at the last entry of the table.

          Anyways, I've come up with a fix.

          Instead of trying to set the variable when exiting Field4, I'm now setting the variable using the event in Field5, CanEditField. I've set this up on a couple of different fields and in all my testing, this seems to be working perfectly.

          Thanks for your help,

          Ron
          Alpha Anywhere v3.5
          Version 12.3, Build 2999
          MySql56 & DBF's

          Alpha 4, 5, Anywhere

          Ron Anusiewicz

          Comment


          • #6
            RE: Field Rule Event Problem

            Ron
            why not get the value of field 4 useing the on save event
            Daniel Weiss
            Daniel Weiss
            EZ Link Software

            Comment


            • #7
              RE: Field Rule Event Problem

              Ron,

              Try this. When you operate with Xbasic, the changes are made under the screen so to speak of the form and the form is not changed. Perhaps for the field rule to work on your next record to work you may need to advance the table record pointer manually and/or resyncronise the form so both the table and form pointers are aligned.

              Dave

              Comment


              • #8
                RE: Field Rule Event Problem

                No, the changes are on the form but what you see is not what you get with regards to setting the variables.

                Anyways, as I posted earlier, I seem to have a good working solution for right now.

                It seems that the straight forward and direct solution doesn't always work with computers. At times, the circular route achieves the desired results.

                Thanks again,

                Ron
                Alpha Anywhere v3.5
                Version 12.3, Build 2999
                MySql56 & DBF's

                Alpha 4, 5, Anywhere

                Ron Anusiewicz

                Comment


                • #9
                  Re: Field Rule Event Problem

                  Great!
                  Last edited by Runback; 08-18-2011, 03:35 AM. Reason: I submitted it to the wrong thread. - Sorry.

                  Comment

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