Save multiple charts as Image in C# winforms windows application

This is about how to save charts or control or WindowsForm save as Image

private void copyChartToolStripMenuItem_Click(object sender, EventArgs e)
        {
            
            using (MemoryStream ms = new MemoryStream())
            {
               
              
                Rectangle sourceRect = pnlMain.ClientRectangle;
                Size targetSize = new Size(pnlMain.Width,pnlMain.Height);
                using (Bitmap tmp = new Bitmap(sourceRect.Width, sourceRect.Height, System.Drawing.Imaging.PixelFormat.Format32bppArgb))
                {
                    pnlMain.DrawToBitmap(tmp, sourceRect);
                    using (Graphics g = Graphics.FromImage(tmp))
                    {
                        g.DrawImage(tmp, new Rectangle(Point.Empty, targetSize));
                    }
                    Clipboard.SetImage(tmp);
                }
               
            }

        }