Data binding to SelectedItem in a WPF Treeview

Question

How can I retrieve the item that is selected in a WPF-treeview? I want to do this in XAML, because I want to bind it.

You might think that it is SelectedItem

Answer 1

Well, I found a solution. It moves the mess, so that MVVM works.

First add this class:

public class ExtendedTreeView : TreeView
{
    public ExtendedTreeView()
        : base()
    {
        this.SelectedItemChanged += new RoutedPropertyChangedEventHandler