protected override void InsertItem(int index, NodeControl item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
if (item.Parent != _tree)
{
if (item.Parent != null)
{
item.Parent.NodeControls.Remove(item);
}
base.InsertItem(index, item);
item.AssignParent(_tree);
_tree.FullUpdate();
}
}
protected override void RemoveItem(int index)
{
NodeControl value = this[index];
value.AssignParent(null);
base.RemoveItem(index);
_tree.FullUpdate();
}
public override void MouseDown(TreeNodeAdvMouseEventArgs args)
{
if (args.Button == MouseButtons.Left)
{
args.Handled = true;
if (args.Node.CanExpand)
{
args.Node.IsExpanded = !args.Node.IsExpanded;
// fixed by wj32
_tree.FullUpdate();
}
}
}
