public class DxPivotGridField :
The Pivot Grid supports only bound fields and displays data from the underlying data source in a cross-tabulated form. It calculates summaries and summary totals against specific fields and displays summary values within data cells.
You can bind multiple DxPivotGridField objects to the same field in the underlying data source. These fields can have different values for their GroupInterval property. In this case, each field groups the same data in its own way.