I am generating barcode image dynamically on button click .

The image is display on the asp image control

now i want to save that image in database

plz help me as early as possible..!

 string barCode = txt_ID.Text;

            using (Bitmap bitMap = new Bitmap(barCode.Length * 40, 80))
            {
                using (Graphics graphics = Graphics.FromImage(bitMap))
                {
                    Font oFont = new Font("IDAutomationHC39M", 16);
                    PointF point = new PointF(2f, 2f);
                    SolidBrush blackBrush = new SolidBrush(Color.Black);
                    SolidBrush whiteBrush = new SolidBrush(Color.White);
                    graphics.FillRectangle(whiteBrush, 0, 0, bitMap.Width, bitMap.Height);
                    graphics.DrawString(barCode, oFont, blackBrush, point);
                }
                using (MemoryStream ms = new MemoryStream())
                {
                    bitMap.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
                    byte[] byteImage = ms.ToArray();
                    Convert.ToBase64String(byteImage);
                    img_Barcode.ImageUrl = "data:image/png;base64," + Convert.ToBase64String(byteImage);//i want to save that generated image in database
                }

            }