public List <string> GetAllVehicleNumbers() { DataTable dt = new DataTable(); using (SqlCommand command = new SqlCommand()) { dt = GetMultipleQuery(VehicleStringsSql.GetAllVehicleNumbers()); } List <VehicleModel> arrVehicle = new List <VehicleModel>(); foreach (DataRow ms in dt.Rows) { arrVehicle.Add(VehicleModel.ToObject(ms)); } List <string> vehicleNumbers = new List <string>(); foreach (var vehicle in arrVehicle) { vehicleNumbers.Add(vehicle.vehicleNumber); } return(vehicleNumbers); }