I'm trying to migrate an app that was written in WPF using default tree view to Telerik UI WinForms RadTreeView. For the default tree that has been used previously I had an ObservableCollection to which I could add items and the change would be displayed in the TreeView immediately without me triggering any update method. However, with the Telerik's solution, when I set the DataSource to the observable collection, no change is visible even though that observable collection has been modified.
The final result that needs to be achieved is to be able to display folder structure on a disc. Now obviously, I don't want to load a folder and all of its subfolders at once, but rather only load the content when the user decides to open the given folder.
Can this be achieved using ObservableCollection and without the need of triggering some sort of update method?