public ActionResult Create(SpecialPriceViewModel specialPriceModel)
        {
            if (ModelState.IsValid)
            {
                SpecialPrice sp = new SpecialPrice();
                sp.Id = specialPriceModel.Id;
                sp.Price = specialPriceModel.Price;
                sp.StartDate = specialPriceModel.StartDate;
                sp.EndDate = specialPriceModel.EndDate;
                db.Rooms.Find(specialPriceModel.RoomId).specialPrices.Add(sp);
                db.SaveChanges();
                return RedirectToAction("Detail/" + specialPriceModel.RoomId, "Room");
            }

            return View(specialPriceModel);
        }
 public ActionResult Edit(SpecialPrice specialprice)
 {
     if (ModelState.IsValid)
     {
         db.Entry(specialprice).State = EntityState.Modified;
         db.SaveChanges();
         return RedirectToAction("Details/" + specialprice.RoomId, "Room");
     }
     return View(specialprice);
 }