By default, the DefaultFormatContent property is empty. The DefaultFormatContent property specifies the default format (key of FormatContent object) to be applied on the column when it is displayed in the pivot-table. The DefaultFormatContent property is not applied when the control displays initially the data. The DefaultFormatContent is applied only when the column is dragged from the control's columns panel ( PivotColumnsFloatBarVisible property ). The PivotColumnsFloatBarVisible property retrieves or sets a value that indicates whether the pivot columns float bar is visible or hidden. The DefaultFormatContent property can include any Key on the FormatContents collection. For instance, "numeric" specifies that the column will be displayed as numeric. The PivotColumns property specifies the list of columns that shows the summarized data.