ObservableCollection WPF Binding Display Not Updating

Question

In setting up data binding for Observable Collection , under the following context: Implementing CollectionChanged Handler in XAML with WPF all bindings are working

Answer 1

Do you fire PropertyChanged when LbItems is set? It does not look that way. In the constructor, you call InitializeComponent first and then initialize the collection in LbItems = new ObservableCollection<string>();. I think that your collection is initialized "too late", because the binding will already have been processed. If you do not fire a property changed when LbItems is set then the binding will not be updated to actually bind to the collection.