ZForge.Controls.TreeViewAdv.Tree.TreeViewAdv.DrawVerticalGridLines C# (CSharp) Метод

        private void DrawVerticalGridLines(Graphics gr, int y)
        {
            int x = 0;
            foreach (TreeColumn c in Columns)
            {
                if (c.IsVisible)
                {
                    x += c.Width;
                    gr.DrawLine(SystemPens.InactiveBorder, x - 1, y, x - 1, gr.ClipBounds.Bottom);
                }
            }
        }