LINQ to Entities Error

Question

Hello Team,

Please am having this error, kindly assist.

Additional information: LINQ to Entities does not recognize the method 'System.String ToString()' method, and this method cannot be translated into a store expression.

 public ActionResult Room()
        {
            RoomViewModel objRoomViewModel = new RoomViewModel();

            List<SelectListItem> bookingStatusList = objHotelDbEntities.BookingStatus
                .Select(obj => new SelectListItem()
                {
                    Text = obj.BookingStatus,
                    Value = Convert.ToInt32(obj.BookingStatusId).ToString(), 
                    Selected = false
                }).ToList();          
                   List<SelectListItem> roomTypeList = objHotelDbEntities.RoomTypes
                .Select(obj => new SelectListItem()
                {
                    Text = obj.RoomTypeName,
                    Value = Convert.ToInt32(obj.RoomTypeId).ToString(), 
                    Selected = false
                }).ToList();
            objRoomViewModel.ListOfBookingStatus = bookingStatusList;
            objRoomViewModel.ListOfRoomRtype = roomTypeList;
            return View(objRoomViewModel);

}