partial void Deletegroup_user_assoc(group_user_assoc instance);
partial void Updategroup_user_assoc(group_user_assoc instance);
private void detach_group_user_assocs(group_user_assoc entity) { this.SendPropertyChanging(); entity.group = null; }
partial void Insertgroup_user_assoc(group_user_assoc instance);
private void attach_group_user_assocs(group_user_assoc entity) { this.SendPropertyChanging(); entity.user = this; }