partial void InsertNop280_ProductVariant_ProductAttribute_Mapping(Nop280_ProductVariant_ProductAttribute_Mapping instance);
partial void DeleteNop280_ProductVariant_ProductAttribute_Mapping(Nop280_ProductVariant_ProductAttribute_Mapping instance);
private void detach_ProductVariant_ProductAttribute_Mappings(Nop280_ProductVariant_ProductAttribute_Mapping entity) { this.SendPropertyChanging(); entity.Nop280_ProductAttribute = null; }