private void ultraChart1_FillSceneGraph(object sender, FillSceneGraphEventArgs e)
        {
            for (int current = 0; current < e.SceneGraph.Count; current++)
            {
                Box currentBox = e.SceneGraph[current] as Box;
                if (currentBox != null && currentBox.Path != null && currentBox.Path.Contains("Legend"))
                {
                    // legend box
                    Text label = e.SceneGraph[current + 1] as Text;
                    if (label != null)
                    {
                        switch (label.GetTextString())
                        {
                            case "ROW #1":
                                currentBox.PE = new PaintElement(Color.Pink);
                                break;
                            case "ROW #2":
                                currentBox.PE = new PaintElement(Color.Lime);
                                break;
                        }
                    }
                }
            }
        }