Hi,
Please find the below PivotGrid.WPF sample focusing with IEnumerable/DataTable objects and custom summary types.
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=CustomSummary_PivotGrid_WPF_DataTable_284e6a8c.zipAnd, we can filter/sort with the help of PivotGrid.WPF for IEnumerable/DataTable objects. Please find the UG link for more details from the following link.
http://help.syncfusion.com/ug_91/Business%20Intelligence/Pivot%20Analysis/WPF/default.htm?turl=Documents%2F1625groupingbar.htmPlease let us know if you need further assistance.
Thanks,
Suriya