partial void DeleteTrackerTripCost(TrackerTripCost instance);
partial void InsertTrackerTripCost(TrackerTripCost instance);
partial void UpdateTrackerTripCost(TrackerTripCost instance);
private void detach_TrackerTripCosts(TrackerTripCost entity)
{
this.SendPropertyChanging();
entity.TripCostType = null;
}