This method expands all rows that correspond to Row Fields. To expand all rows that correspond to a specific Row Field, use the DevExpress.XtraPivotGrid.PivotGridFieldBase.ExpandAll method. The DevExpress.XtraPivotGrid.PivotGridFieldBase.ExpandValue method expands individual rows.
To expand all rows asynchronously, use the ExpandAllRowsAsync method.
To collapse all rows, use the CollapseAllRowsAsync (asynchronous) or CollapseAllRows (synchronous) method.
To expand or collapse all columns asynchronously, use the ExpandAllColumnsAsync and CollapseAllColumnsAsync methods, respectively (or the ExpandAllColumns and CollapseAllColumns methods to do this synchronously).