Panel to Bitmap

            Bitmap MyChartPanel = new Bitmap(PrintPanel.Width, PrintPanel.Height * 5);
            PrintPanel.DrawToBitmap(MyChartPanel, new Rectangle(0, 0, PrintPanel.Width, PrintPanel.Height));

            Point pp = new Point(40, 50); //調整列印的座標
            e.Graphics.DrawImage(MyChartPanel, pp);