The documentation notes that the TreeView should have its items default as IsExpanded=False, however, everything is expanded when I start my TreeView. This also includes the situation when I have a TreeView with a custom template (provided by the excellent people at Telerik, for dealing with cutoff expander icon issue!) and if I try to set Expanded explicitly to False via the template and viewmodel.

This seems to be pretty basic and I have to wonder if I'm not doing something correctly.

Thanks.