Question

I have three text boxes. I need:

1. Regular expression to only allow 3 upper case alphabets. No empty strings and no numbers
2. Regular expression to allow only 3 numbers. no empty strings
3. Regular expression for 5 or fewer uppercase alphabets only. no empty strings, no numbers

Answer 1

This should do it:

1. ^[A-Z]{3}$
2. ^[0-9]{3}$
3. ^[A-Z]{1,5}$