public ActionResult AddMedicines(int id) { AppointmentId = id; TempData["id"] = AppointmentId; medicine = new MedicinesQuantity(); medicine = patientBusinessLayer.CheckIdInList(AppointmentId); if (medicine == null) { return(View(db.Medicines.ToList())); } else { return(RedirectToAction("InvoiceList", "Invoice", new { AppointmentId = AppointmentId })); } }