public IActionResult AddConvenient(ConvenientHotel model)
        {
            if (HttpContext.Session.GetString("ID") == null)
            {
                return(RedirectToAction("Login", "Admin"));
            }
            else
            {
                if (ModelState.IsValid)
                {
                    //get HotelID
                    int hotelID = Convert.ToInt32(model.HotelID);

                    //get convenientID
                    int convenientID = Convert.ToInt32(model.ConvenientID);

                    // check convenientID and HotelID in HotelConvenient table
                    if (hotelRepository.checkConvenientIDInConvenientHotel(convenientID, hotelID))
                    {
                        //forward HotelID to View
                        ViewBag.hotelID = model.HotelID;

                        // execute addConvenient method
                        hotelRepository.AddConvenient(model);

                        //notification
                        ModelState.AddModelError(string.Empty, "Success.");
                        return(View(hotelRepository.getAllConvenients));
                    }
                    else
                    {
                        ViewBag.hotelID = model.HotelID;
                        ModelState.AddModelError(string.Empty, "This Convenient already exists.");
                        return(View(hotelRepository.getAllConvenients));
                    }
                }
                ViewBag.hotelID = model.HotelID;
                return(View(hotelRepository.getAllConvenients));
            }
        }
 public void AddConvenient(ConvenientHotel _ConvenientHotel)
 {
     db.tbl_ConvenientHotel.Add(_ConvenientHotel);
     db.SaveChanges();
 }