partial void DeleteGeoCity(GeoCity instance);
partial void UpdateGeoCity(GeoCity instance);
private void detach_GeoCitiy(GeoCity entity) { this.SendPropertyChanging(); entity.GeoRegion = null; }
partial void InsertGeoCity(GeoCity instance);
private void attach_GeoCitiy(GeoCity entity) { this.SendPropertyChanging(); entity.GeoRegion = this; }