我意识到这个问题已经被接受，但是我将其汇总起来以解决问题。它使用了与Delta解决方案类似的想法，但无需将TreeView子类化：
public class BindableSelectedItemBehavior : Behavior<TreeView>{ #region SelectedItem Property public object SelectedItem { get { return (object)GetValue(SelectedItemProperty); } set { SetValue(SelectedItemProperty, value); } } public static readonly DependencyProperty SelectedItemProperty = DependencyProperty.Register("SelectedItem", typeof(object), typeof(BindableSelectedItemBehavior), new UIPropertymetadata(null, OnSelectedItemChanged)); private static void onSelectedItemChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e) { var item = e.NewValue as TreeViewItem; if (item != null) { item.SetValue(TreeViewItem.IsSelectedProperty, true); } } #endregion protected override void onAttached() { base.onAttached(); this.AssociatedObject.SelectedItemChanged += OnTreeViewSelectedItemChanged; } protected override void onDetaching() { base.onDetaching(); if (this.AssociatedObject != null) { this.AssociatedObject.SelectedItemChanged -= OnTreeViewSelectedItemChanged; } } private void onTreeViewSelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e) { this.SelectedItem = e.NewValue; }}然后，您可以在XAML中将其用作：
<TreeView> <e:Interaction.Behaviors> <behaviours:BindableSelectedItemBehavior SelectedItem="{Binding SelectedItem, Mode=TwoWay}" /> </e:Interaction.Behaviors></TreeView>希望它将对某人有所帮助！
