//...
public TreeViewRow() : base()
{
SetCurrentValue(SplitterVisibilityProperty, false);
this.AddHandler(i =>
{
treeViewItem
= this.FindParent <TreeViewItem>() ?? throw new NotSupportedException();
treeView
= treeViewItem.FindParent <TreeView>();
if (treeView != null)
{
treeView.RemoveChanged
(TreeViewExtensions.ModeProperty, OnTreeViewModeChanged);
treeView.AddChanged
(TreeViewExtensions.ModeProperty, OnTreeViewModeChanged);
Reset();
}
}, i =>
{
if (treeView != null)
{
treeView.RemoveChanged(TreeViewExtensions.ModeProperty, OnTreeViewModeChanged);
Unsubscribe();
}
});
}
