How to use Aspose::Words::MailMerging::MappedDataFieldCollection::virtualized_iterator_element typedef of Aspose::Words::MailMerging::MappedDataFieldCollection class in C++....Aspose::Words::MailMerging::MappedDataFieldColle::virtualized_iterator_element...virtualized_iterator_element typedef using Aspose :: Words :: MailMerging ::...