static MyTreeListView()
 {
     FocusedRowHandleProperty.OverrideMetadata(typeof(MyTreeListView), new FrameworkPropertyMetadata(GridControl.InvalidRowHandle, null, (d, e) => ((MyTreeListView)d).CoerceFocusedRowHandle((int)e)));
 }
 static MyTreeListView()
 {
     FocusedRowHandleProperty.OverrideMetadata(typeof(MyTreeListView), new FrameworkPropertyMetadata(null, B));
 }