title: RaiseCanExecuteChanged event
body: <p>I am at the stage in a project where I need to get control of enabling / disabling some hyperlinks based on various business rules. I noticed all topics on RaiseCanExecuteChanged event refer to MVVM light. Does this mean that I have to use MVVM light or is there a way to access this event using standard MVVM. If so, how?  Thanks</p>