Sets or returns a Section.NumberFormat object that represents the page number format for this section. There are 5 type of page number formats:

 public NumberFormat PageNumberFormat{ get; set; }
Public Property PageNumberFormat() As NumberFormat

MS Word equivalent: Insert menu > Page Numbers... > Format... button > Number format:

          //--- Return PageNumberFormat
          Section.NumberFormat oPageNumberFormat = oSection.PageNumberFormat;

          //--- Set PageNumberFormat
          oSection.PageNumberFormat = Section.NumberFormat.Arabic;

          '--- Return PageNumberFormat
          Dim oPageNumberFormat As Section.NumberFormat = oSection.PageNumberFormat

          '--- Set PageNumberFormat
          oSection.PageNumberFormat = Section.NumberFormat.Arabic