ATMLCommonLibrary.controls.awb.AWBDropListView._treeForm_LostFocus C# (CSharp) 메소드

        private void _treeForm_LostFocus( object sender, EventArgs e )
        {
            if (!btnDown.RectangleToScreen( btnDown.ClientRectangle ).Contains( Cursor.Position ))
            {
                CloseTree();
            }
        }