AdvancedDataGridView.TreeGridCell.OnMouseDown C# (CSharp) Метод

        protected override void OnMouseDown(DataGridViewCellMouseEventArgs e)
        {
            if (e.Location.X > this.InheritedStyle.Padding.Left)
            {
                base.OnMouseDown(e);
            }
            else
            {
                // Expand the node
                //TODO: Calculate more precise location
                TreeGridNode node = this.OwningNode;
                if (node != null)
                {
                    node._grid._inExpandCollapseMouseCapture = true;
                    if (node.IsExpanded)
                        node.Collapse();
                    else
                        node.Expand();
                }
            }
        }