Numerical and Alpha Field Validation

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Cheryl Shah

SharePoint Developer

Kiekert USA, Inc.

46941 Liberty Drive

Wixom, MI 48393 United States

T: +1 248 960 5348

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I just had a quick look, and the way you are doing is the best way.  Javascript is not ideal, because if you decide to move to Responsive, then it won't work.  I looked at a Regular Expression validation, to see if we can do a if/then type expression, but unfortunately, you don't have access to the controls from a Regular Expression.

So you're on the right track with how you've done it