Does anybody know how you write a validator that validates a field based on another field? What I have is a radio button and a text field. The radio button has 3 options let's say A, B and C. Only if the item B is selected, then I want to validate the text field based on some regular expression criteria.
Is there a way for me to write a Custom Validator to do this 'conditional' validation, or do I need to just do manual validation of the form?
Currently, there is no form level validation in JSF, but only the component base level validation. The common practice is processing the validation on the Invoke Application (#5) phase. I.e. in the action method. I guess, it is a case that you call "manual validation of the form".