public bool Add(District item) { if (_districtRepository.GetSingleById(item.Id) == null && !_districtRepository.Exists(m => m.CityId.Trim().ToUpper() == item.CityId.ToUpper() && m.Name.Trim().ToUpper() == item.Name.ToUpper())) { item.CreatedDate = DateTime.Now; _districtRepository.Add(item); } return(true); }