How to filter a wpf treeview hierarchy using an ICollectionView?

Question

I have a hypothetical tree view that contains this data:

RootNode
   Leaf
   vein
SecondRoot
   seeds
   flowers

I am trying to filter the

Answer 1

I decided to use the treeview by Philipp Sumi mentioned here : http://www.codeproject.com/KB/WPF/versatile_treeview.aspx

And applied a filter to it as shown here : http://www.hardcodet.net/2008/02/programmatically-filtering-the-wpf-treeview

I couldn't recommend it enough :)