TreeListView - filter rows or visible/collapse row depends on source propery

[Dejan Jovanov]

Hi,

I have 2 controls: TreeView and TreeListView .
Both controls have same ItemsSource business object (ObservableCollection<TDG_DataTable>).

TreeView  displays all items everytime.
TDG_DataTable has Boolean member "Included".
Depends on Included value, TDG_DataTable item should be visible/hidden in TreeListView

So both controls should have same source.
How I can achieve this.

Many thanks.
Dejan