The collectionChanged event only of the root-nodes-collection causes an update of the view, but not the collections of the subnodes.
Looking at the code, i guess it is because the invoking of a render-Method like in your TreeView Class is missing in the TreeViewNodeView Class
The collectionChanged event only of the root-nodes-collection causes an update of the view, but not the collections of the subnodes. Looking at the code, i guess it is because the invoking of a render-Method like in your TreeView Class is missing in the TreeViewNodeView Class