Aspose::Cells::Pivot::PivotPageFields::AddIdentify method. Sets which item label in each page field to use to identify the data range. The pageItemIndex.Length must be equal to PageFieldCount, so please add the page field first in C++....int32_t rangeIndex , const Vector < int32_t > & pageItemIndex...index. pageItemIndex const Vector <int32_t>& The page item index...