partial void DeleteSanPham(SanPham instance);
partial void UpdateSanPham(SanPham instance);
private void detach_SanPhams(SanPham entity)
{
this.SendPropertyChanging();
entity.LoaiSanPham = null;
}
partial void InsertSanPham(SanPham instance);
private void attach_SanPhams(SanPham entity)
{
this.SendPropertyChanging();
entity.LoaiSanPham = this;
}