partial void DeleteChiTiet(ChiTiet instance);
partial void UpdateChiTiet(ChiTiet instance);
private void detach_ChiTiets(ChiTiet entity)
{
this.SendPropertyChanging();
entity.BanTin = null;
}
partial void InsertChiTiet(ChiTiet instance);
private void attach_ChiTiets(ChiTiet entity)
{
this.SendPropertyChanging();
entity.BanTin = this;
}