## DropDownItemCollecti::Insert method Inserts a string into the collection at the specified index. ```cpp void Aspose::Words::Fields::DropDownItemCollecti::Insert(int32_t index, const System::Stri......DropDownItemCollecti::Insert method Inserts a string into the collection...Aspose::Words::Fields::DropDownItemCollecti::Insert(int32_t index, const System::String...