Aggregates object
The Aggregates collection holds the aggregate functions the user can use and display in the pivot control. The Aggregates property gets access to Aggregate objects  to define aggregate functions like sum, avg, min, max, count. The Aggregate objects are displayed ( as radio buttons ) on the control's context menu as shown:

The Aggregates collection supports the following properties and methods:

 

NameDescription
AddAdds an Aggregate function and returns a reference to the newly created object.
ClearRemoves all objects in a collection.
CountReturns the number of objects in a collection.
ItemReturns a specific Aggregate function giving its key.
RemoveRemoves a specific member from the collection.