public ActionResult editOrder(Order orderData)
        {
            orderData.UserID = currentUserID;
            orderData.Date   = DateTime.Today;
            //  db.Entry(orderData).State = System.Data.Entity.EntityState.Modified ;
            db.Set <Order>().AddOrUpdate(orderData);

            db.SaveChanges();
            return(RedirectToAction("Transaction", "OrderTransaction"));
        }