partial void InsertNop280_ProductVariantAttributeCombination(Nop280_ProductVariantAttributeCombination instance);
partial void DeleteNop280_ProductVariantAttributeCombination(Nop280_ProductVariantAttributeCombination instance);
private void detach_ProductVariantAttributeCombinations(Nop280_ProductVariantAttributeCombination entity) { this.SendPropertyChanging(); entity.Nop280_ProductVariant = null; }