public ActionResult Create(GreetingSchedule greetingschedule)
        {
            if (ModelState.IsValid)
            {
                db.GreetingSchedules.Add(greetingschedule);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            ViewBag.UserId = new SelectList(db.Users, "Id", "Username", greetingschedule.UserId);
            return View(greetingschedule);
        }
 public ActionResult Edit(GreetingSchedule greetingschedule)
 {
     if (ModelState.IsValid)
     {
         db.Entry(greetingschedule).State = EntityState.Modified;
         db.SaveChanges();
         return RedirectToAction("Index");
     }
     ViewBag.UserId = new SelectList(db.Users, "Id", "Username", greetingschedule.UserId);
     return View(greetingschedule);
 }