partial void DeleteFastFood(FastFood instance);
 partial void UpdateFastFood(FastFood instance);
 private void detach_FastFoods(FastFood entity)
 {
     this.SendPropertyChanging();
     entity.Category = null;
 }
 partial void InsertFastFood(FastFood instance);
 private void attach_FastFoods(FastFood entity)
 {
     this.SendPropertyChanging();
     entity.Category = this;
 }