private void OnTreeViewSelectedItemChanged(object sender, RoutedPropertyChangedEventArgs <object> e)
 {
     SelectedItem = e.NewValue as ITreeSeekable;
 }
 public TexplorerTextureFolder(string folderName, string filter, TexplorerTextureFolder parent) : this()
 {
     Parent = parent;
     Name = folderName;
     Filter = filter;
 }