Get Leafs of TreeView

Hi All,

I have displayed a tree view in my application using MVVM and I followed the following article for that: http://www.codeproject.com/Articles/26288/Simplifying-the-WPF-TreeView-by-Using-the-ViewMode . 

Now the problem is I want to get the number of leafs with a certain level like 10th level and I want to do it with MVVM. Guys help me out. 

Thanks,

Attiqe

Attiqe Ur Rehman