You can use field formatting to group data. Suppose you have a bound list of products and you want to group all of the items ordered together within a particular quarter. You can use the Field Settings dialog box at run time or code.  This example uses the sample created in the Quick Start topic.

To group data by year (quarter) at run time:

1. Add the following fields to the grid view by selecting them in the PivotPanel: Date, Product, and Downloads.
2. Right-click the Date field, under Row Fields and select Field Settings. The Field Settings dialog box appears.
3. In the Filter option, make sure Select All option is selected.
4. From the Format drop-down list, select Year Quarter (yyyy "Q"q) option to group the data in the PivotGrid according to quarter.
5. Click OK again to close the Field Settings dialog box.

The following image displays data where products are grouped by the year (qaurter).