private void detach_FrequentDrivers(FrequentDriver entity)
 {
     this.SendPropertyChanging();
     entity.Person = null;
 }
 partial void DeleteFrequentDriver(FrequentDriver instance);
 partial void InsertFrequentDriver(FrequentDriver instance);
 partial void UpdateFrequentDriver(FrequentDriver instance);
 private void attach_FrequentDrivers1(FrequentDriver entity)
 {
     this.SendPropertyChanging();
     entity.Car1 = this;
 }