partial void DeletetblCar(tblCar instance);
 partial void UpdatetblCar(tblCar instance);
 private void detach_tblCars(tblCar entity)
 {
     this.SendPropertyChanging();
     entity.tblUser = null;
 }
 partial void InserttblCar(tblCar instance);
 private void attach_tblCars(tblCar entity)
 {
     this.SendPropertyChanging();
     entity.tblUser = this;
 }