partial void Deletet_Competition(t_Competition instance);
partial void Updatet_Competition(t_Competition instance);
private void detach_t_Competitions(t_Competition entity) { this.SendPropertyChanging(); entity.t_Line = null; }
partial void Insertt_Competition(t_Competition instance);
private void attach_t_Competitions(t_Competition entity) { this.SendPropertyChanging(); entity.t_CompetitionSet = this; }