private void detach_Rankings(Ranking entity)
 {
     this.SendPropertyChanging();
     entity.New = null;
 }
 private void attach_Rankings(Ranking entity)
 {
     this.SendPropertyChanging();
     entity.New = this;
 }
 partial void UpdateRanking(Ranking instance);
 partial void DeleteRanking(Ranking instance);
 partial void InsertRanking(Ranking instance);