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Xdialog filtering question

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    Xdialog filtering question

    Hello,

    I was looking at the Learning Xdialog sample database and saw the List view "Progressive Lookup" dialog box.
    The first field is used to filter what is displayed in the list below.
    When I looked at the "ID" fields in the tables, I noticed that the data type id character (something I don't understand, but I notice that is the norm in the sample databases)

    I tried to recreate this dialog box using ID fields that are numeric.

    I set both fields(variables to character. The first one is a combo box and the second one is a list view control.

    I created a character argument on the list view control variable.

    When I select a vendor from the combo box, no purchases are not being displayed in the list view control.
    I went back and added the str() function to the filter thinking the field data types needed to match the character variable type on the Script Genie. That didn't work either.

    I'm hoping someone can tell me where I went wrong or whether or not it is even possible to replicate the progressive lookup dialog box functionality using numeric fields instead of character fields.

    Any help would be greatly appreciated.

    Thank you
    Tracy

    #2
    Re: Xdialog filtering question

    The listview is populated from a table with a character type id field. Did you change that?

    I noticed that the data type id character (something I don't understand, but I notice that is the norm in the sample databases)
    Generally numeric types are reserved for values which will be involved in some mathematical computation. Character if not. Much like zip codes are stored as character types even though they only involve digits.
    There can be only one.

    Comment


      #3
      Re: Xdialog filtering question

      Hi Stan,


      Originally posted by Stan Mathews View Post
      The listview is populated from a table with a character type id field. Did you change that? .

      I didn't change the data type in the table. I selected numeric on the Xdialog box. Is that what you mean?


      Generally numeric types are reserved for values which will be involved in some mathematical computation. Character if not. Much like zip codes are stored as character types even though they only involve digits.
      I understand what you are saying and I do define zip code fields as character. The reason that I use numeric for ID fields is because I want them to auto increment. It didn't dawn on me that it would be possible to auto increment a number in a character field. This is wjy I said that I didn't understand why the ID fields were defined as character.

      Right now I can't remember which database package I used back in the day, but it actually had a field type called "auto increment" or something like that and it was numeric.

      Do you recommend that I change the data type of ID fields in tables to character? I'm using test data, so it's okay.

      If I leave the ID fields as numeric, will I keep running into issues like this in A5? If I could find the right conversion function to convert numeric values to character, would that be okay? I'm asking these questions because I'd like to know what my options are before I start moving data into
      A5?

      It may not seem like it, but I am trying to stay out of trouble - LOL - and make things runs as sooth as possible.

      Any advice would be greatly appreciated.

      Thank you
      Tracy

      Comment

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