After you create a service reference, rebuild the solution.
After creating a data source, click Items Source Wizard again.
In the invoked Items Source Configuration Wizard, select the created service.
On the next page, select the required binding method.
Simple Binding - allows you to bind the PivotGridControl to a data source directly.
Manipulating Data via ICollectionView - allows you to bind the PivotGridControl to a DataSet using the ICollectionView component, which enables collections to have the functionalities of current record management, custom sorting, filtering, and grouping. To learn more, see ICollectionView Specifics.