public ActionResult GetBarCodeImg(string txm)
{
Code128BarcodeDraw qrcode = BarcodeDrawFactory.Code128WithChecksum;
//Code128BarcodeDraw qrcode = BarcodeDrawFactory.Code128WithChecksum;
Image barcode = qrcode.Draw(txm, qrcode.GetDefaultMetrics(40));
System.IO.MemoryStream ms = new System.IO.MemoryStream();
barcode.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
Response.ContentType = "image/jpeg";
Response.Clear();
Response.BinaryWrite(ms.ToArray());
return(new EmptyResult());
}