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Help with Validation Formula

Question asked by john.s on Jan 17, 2014
Latest reply on Jan 17, 2014 by john.s


Help with Validation Formula



     I need to validate that a field YBImage has only 5 char the first char must be either A B C or D and the remaining 4 char must be numeric.

     I know I can check the length with

             Length ( YBImage) = 5

      and I can check the total contents with

        Filter ( YBImage; "0123456789ABCD"=YBImage

     from there I am lost.  How do I check to be sure the alfa char is in the first position?