public ActionResult Payment(Payment payment)
        {
            try
            {
                PaymentManager paymentManager = new PaymentManager();
                var            result         = paymentManager.Add(payment);
                returnobj.SetSuccess(result.PaymentID);
            }
            catch (Exception ex)
            {
                returnobj.SetError(ex.Message);
            }

            return(Content(returnobj.ToJson(), "application/json"));
        }