partial void DeleteGioHang(GioHang instance);
partial void UpdateGioHang(GioHang instance);
private void detach_GioHangs(GioHang entity) { this.SendPropertyChanging(); entity.SanPham = null; }
partial void InsertGioHang(GioHang instance);
private void attach_GioHangs(GioHang entity) { this.SendPropertyChanging(); entity.SanPham = this; }