WPF - Bound treeview not updating root items

Question

I\'m using a WPF TreeView control, which I\'ve bound to a simple tree structure based on ObservableCollections. Here\'s the XAML:

Answer 1

if 'root' is an ObservableCollection your treeview will update. is 'root' an observable collection, or is root a node that is in an observable collection? seeing your binding for the items source would help to answer this question. as you are assigning it in code you might just be setting it to be a single element, not a collection