Hello Eilon.
well, it's that currently, this control doesn't "feel" good. for instance, to get it to work properly you have to:
1. write something
2. select another control (remove focus from the validated textbox)
3. go back and delete the content
4. remove focus from the control
this will make the validator do its work...however, if i just don't write anything in the textbox, then the validator won't do its validation (because there's no propertychanged event) and the info will be considered valid.
btw, one more question: any chance of expanding the validators so that they can be applied to other form controls?