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Gets a PivotItemList collection that corresponds to the items on the column axis that represent the selected range.
IPivotItemList ColumnItems { get; }
ReadOnly Property ColumnItems As IPivotItemList
IPivotValueCell valueCell = pivotTable.PivotValueCell(0, 0);
IPivotCell pivotCell = valueCell.PivotCell;
IPivotItemList columnItems = pivotCell.ColumnItems;