public ActionResult Create([Bind(Include = "assignment_id,title")] assignment assignment)
        {
            if (ModelState.IsValid)
            {
                //db.assignments.Add(assignment);
                //db.SaveChanges();
                db.Save(assignment);
                return(RedirectToAction("Index"));
            }


            // ViewBag.course_id = new SelectList(db.courses, "course_id", "course_name", assignment.course_id);
            return(View("Create", assignment));
        }