I have used a UDF before that could restrict the data type for an input, and I found this today by searching: But the solution Melba has in that thread causes my input to refresh over and over so it won't work for this situation,  As for that UDF I have no idea where that old UDF is.  So figured maybe I should just ask as their may be new UDF or new methods that I am not aware of.  Basically I have a GUI that asks for the users Name/ID that submits to a database. In production I am having peopl