What is the difference between a RoutedCommand and a RoutedUICommand?

Question

I have tried to do some reading about it, but I failed to find documentation that explains the difference between RoutedCommand and RoutedUICommand satisfactorily.

Answer 1

RoutedUICommand derives from RoutedCommand and adds a text field used to provide a description of the command. This is useful when the command is bound to be accessed from the UI.

I got this from here.