I have a RadMaskedNumericInput control with its value bound to a property on my viewmodel. I was the value to update as the user types but as soon as the event fires focus moves to the next field. Is this by design? None of the other field types do this! If I change the UpdateValueEvent property to LostFocus then it's fine but doesn't update the viewmodel as you type. I need this to happen because the current value may be need before focus is lost on the field in question.