To include one XAML file into another XAML file?

Hi,

I want 2 files having treeview with a custom style to describe in a trvStyle.xaml & then include in both.

Is this possible?

Well i think there has to be some application where you could define the stylein the application resources and then it will be available globally.

Well i just read your question & with simple google search i found this article which I think is really helpful article regarding your query Ie. including one XAML file with another XAML file