Is it possible to add your own operators to the list of valid radvalidatorprovider's own operators. I have a requirement for two operators:
1. See if a value is already contained with a Dictionary object, if so the operator should cause the validation to fail.
2. See if a folder path specified in a textboxcontrol exists on dick. If not, then the validation should fail.
I know I could do this in code, and simply display a dialog stating the error, but I want consistent validation reporting throughout my application.