XAML UserControl inheritance

Question

Coming from Java, I\'m really used to a common practice when it comes to make GUI components: I usually do some sort of base class which contains all the common objects for

Answer 1

As far as I know, deriving UI as is, is unavailable unless for resources XAML (styles for ex). Maybe the reason is the UI manager cannot guess where to put the extended XAML code: Imagine the base UI as follows:

and the derived UI :

What would be the result after the mix?

a straight forward answer could be:

which is not possible.

What about controls embedding/compatibility issues ?