C# :how to save panel 1 as image to specific folder ?

<pre> using (Bitmap graphicSurface = new Bitmap(panel1.Width, panel1.Height))
            {
                using (StreamWriter bitmapWriter = new StreamWriter("TEST.JPEG"))
                {
                    panel1.DrawToBitmap(graphicSurface, new Rectangle(0, 0, panel1.Width, panel1.Height));
                    graphicSurface.Save(bitmapWriter.BaseStream, ImageFormat.Jpeg);
                }
            }
        }