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Creating Field Rules in XBasic

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  • Creating Field Rules in XBasic

    i see where i can create/change the easy ones...

    how/where do i get information to access the properties of a lookup field rule?

    i want to require that "field1" exist in table 2 and then use table2 to put a value into "field2".

    i've got this so far:
    +++++++++++++++++
    dim tbl as P
    dim fr as P
    tbl = table.open("TrashPmt")
    fr = tbl.rules_get()
    ? fr
    V Change_Begin() 'Begin changes to the field rules.
    V Change_End([L Commit]) 'End changes to the field rules.
    Field_Rule_Get as P(fieldName as c[,variableFrame as p]) 'Get (or add) a rule for a field - includes variables of calc fields.
    +PMTAMT.
    +TIXNUM.
    '+++++++++++++++++++++++++++++++++++++++++++++++++
    Field_Rule_Get as P(fieldName as c[,variableFrame as p]) 'Get (or add) a rule for a field - includes variables of calc fields.
    '+++++++++++++++++++++++++++++++++++++++++++++++++
    ?fr.field_rule_get("TixNum")
    +Cross_File.
    +Lookup.
    +Required.
    +Unique.
    +Validation.
    '+++++++++++++++++++++++++++++++++++++++++++++++++
    ?fr.tixnum.lookup.Type
    ?fr.tixnum.lookup.class()
    = "Rule.Lookup"
    ?fr.tixnum.Unique.class()
    = "Rule.Unique"
    ?fr.tixnum.Cross_File.Type
    = "None"
    ?fr.tixnum.Validation.List.class()
    = "Rule.Validation.List"
    '+++++++++++++++++++++++++++++++++++++++++++++++++

    i think the appropriate question is:
    how do i get access to the "Rule.Lookup" class?

  • #2
    Re: Creating Field Rules in XBasic

    I believe the table lookup field rule is essentially a black box, the inner workings of which have not been exposed for us.

    Instead of trying to modify the built in lookup, why not build your own?

    Comment


    • #3
      Re: Creating Field Rules in XBasic

      Originally posted by Tom Cone Jr View Post
      I believe the table lookup field rule is essentially a black box, the inner workings of which have not been exposed for us.

      Instead of trying to modify the built in lookup, why not build your own?

      i'm willing to build my own; in fact that was what i was starting to do but didn't know what "object values" i needed to "set"...

      in other words, keep talking - i'm listening attentively!!!

      Comment


      • #4
        Re: Creating Field Rules in XBasic

        Ok. First, write down the specific sequence you'd want Alpha Five to follow, using the smallest possible steps. When I do this I try to think of the specific steps I'd have to take to do it by hand. Let us see what you come up with. We'll offer suggestions. Don't worry about "how" to do it. Concentrate on "what" needs to be done.

        Then think carefully about the context in which the desired sequence should run. We need to find the right "event" to trigger the script. Might be as simple as a button push, but it may be something you'd want to happen automatically. Don't know yet.

        Comment


        • #5
          Re: Creating Field Rules in XBasic

          after 2 hours of documenting, i realized that it didn't matter because i'd have to define/create a custom browse toolbar which would post the contents of this "trash" file and the custom toolbar i am building for another process does not like to post the data on the browse. that's another topic i'll post shortly after i get it documented sufficiently.

          so, long story made short - i'll have to have a permanent table. and it'll have permanent (manually entered) field rules..

          thanks anyway..............

          Comment

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