//GEt Vista para asignar materias al docente public ActionResult SubjectTeacher(string id = null) { if (id == null) { return(new HttpStatusCodeResult(HttpStatusCode.BadRequest)); } Teacher teacher = db.tblTeacher.Find(id); if (teacher == null) { return(HttpNotFound()); } else { ViewBag.subjects = subject.GetSubjects(); return(View(teacher)); } }