private void detach_GiangDays(GiangDay entity)
{
this.SendPropertyChanging();
entity.GiaoVien = null;
}
private void attach_GiangDays(GiangDay entity)
{
this.SendPropertyChanging();
entity.GiaoVien = this;
}
partial void UpdateGiangDay(GiangDay instance);
partial void DeleteGiangDay(GiangDay instance);
partial void InsertGiangDay(GiangDay instance);