// GET: BookingRoom/Edit/5 public async Task <IActionResult> Edit(int?id) { if (id == null) { return(NotFound()); } var bookingRoom = await _context.BookingRoom.FindAsync(id); if (bookingRoom == null) { return(NotFound()); } ViewData["RoomId"] = new SelectList(_context.Set <Room>(), "RoomId", "RoomName", bookingRoom.RoomId); return(View(bookingRoom)); }