private void detach_t_CompetitionSets(t_CompetitionSet entity)
{
this.SendPropertyChanging();
entity.t_User = null;
}
partial void Updatet_CompetitionSet(t_CompetitionSet instance);
partial void Deletet_CompetitionSet(t_CompetitionSet instance);
partial void Insertt_CompetitionSet(t_CompetitionSet instance);