[HttpPost]
    public ActionResult Index(string barcode)
    {

        BarcodeSymbology symbology = BarcodeSymbology.Code39C;
        BarcodeDraw drawObject = BarcodeDrawFactory.GetSymbology(symbology);

        var metrics = drawObject.GetDefaultMetrics(60);
        metrics.Scale = 1;

        var barcodeImage = drawObject.Draw(barcode, metrics);

        using (MemoryStream ms = new MemoryStream())
        {
            barcodeImage.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
            byte[] imageBytes = ms.ToArray();

            ViewBag.BarcodeImage = "data:image/png;base64," + Convert.ToBase64String(imageBytes);
        }


        return View();
    }