This process prevents a user from saving a range of Special Characters if entered in a Text Input. This may have other application as well as the Text Box example. A working example is shown below So how does this work? Firstly do a Collection of all special characters (you can do this at Screen OnVisible) by using their ASCII value ranges. This puts 31 Special Characters into the collection under the field FieldNo.Below is a gallery (with wrap at 4) showing the characters Note you may want to allow some such as Underscore _ (95) and will have to adjust the above to suit.Now put this on the OnChange of the Text Box…