public JsonResult UpdateMontlyPayment(MontlyPaymentModel montlyPaymentModel)
        {
            montlyPaymentModel.MontlyPayment.Student = montlyPaymentModel.Student;
            facade.UpdateMontlyPayment(montlyPaymentModel.MontlyPayment);

            return(Json("ok", JsonRequestBehavior.AllowGet));
        }
        public JsonResult CreateMontlyPayment(MontlyPaymentModel montlyPaymentModel)
        {
            facade.CreateMontlyPayment(montlyPaymentModel.MontlyPayment, montlyPaymentModel.Student);

            return(Json("ok", JsonRequestBehavior.AllowGet));
        }