## CustomXmlSchemaColle::idx_set method Gets or sets the element at the specified index. ```cpp void Aspose::Words::Markup::CustomXmlSchemaColle::idx_set(int32_t index, const System::String &value)......```cpp void Aspose::Words::Markup::CustomXmlSchemaColle::idx_set(int32_t...System::SharedPtr<Aspose::Words::Markup::CustomXmlPart> xmlPart = ...