enumPivotShowFieldDateGroupBy

typedef enum
{
    pivotfielddategroupby_seconds  = 1,
    pivotfielddategroupby_minutes  = 2,
    pivotfielddategroupby_hours    = 3,
    pivotfielddategroupby_days     = 4,
    pivotfielddategroupby_months   = 5,
    pivotfielddategroupby_quarters = 6,
    pivotfielddategroupby_years    = 7

} enumPivotShowFieldDateGroupBy;

used in IXlsPivotTableFieldGroupBy::DateInterval property.