public ActionResult Index() { if (Session["Email"] != null) { var result = new API().GetCourse(Session["ID"] as string); var db = new sepoopcsEntities(); for (int i = 0; i < result.Data.Length; i++) { var code = result.Data[i].Id; if (db.Courses.SingleOrDefault(c => c.Code == code) == null) { var course = new Course(); course.Code = result.Data[i].Id; course.Name = result.Data[i].Name; course.Info = result.Data[i].Info; course.Lecturer = (string)Session["ID"]; db.SaveChanges(); } } return(RedirectToAction("Index", "Courses")); } return(View()); }