Test it this way:
? field = upper(field) && all uppercase
? field = lower(field) && all lowercase
? field = proper(field) && proper casing
Or create logical variables to store the testresults for testing in your program like this:
private lIsUpper, lIsLower, lIsProper
lIsUpper = (field = upper(field))
lIsLower = (field = lower(field))
lIsProper= (field = proper(field))
You then can test whatever you want.
Substitute the correct fieldname for field.
Rob.