Hello Christian Surieux,
You could achieve this functionality by setting the
MaskType to
None and handling the
ValueChanging event. In this event, you can check with a regex expression whether the
e.NewValue matches an email pattern and handle the event (e.Handled = true) if it does not match. You should also set the
UpdateValueEvent to LoseFocus, so that the ValueChanging event is raised only when the focus is lost and not on key press.
Best wishes,
Alex Fidanov
the Telerik team
Browse the
videos here>> to help you get started with RadControls for Silverlight