Aggregate object
The Aggregate object defines an aggregate function to be used by the control. An aggregate function is a function where the values of multiple rows are grouped together as input on certain criteria to form a single value of more significant meaning or measurement such as a set, a bag or a list. The Aggregates property gets access to Aggregate objects  to define aggregate functions like sum, avg, min, max, count, unique. The Aggregate objects are displayed ( as radio buttons ) on the control's context menu as shown:

The object supports the following properties and methods:

NameDescription
BaseSpecifies the name of the Base Aggregate function to be used by current Aggregate object.
CaptionSpecifies the caption of the Aggregate to be displayed on the column.
FormatResultSpecifies the expression to be applied on the result of the aggregate function.
FormatValueSpecifies the expression to be applied on the value before passing to the aggregate function.
KeyIndicates the key of the Aggregate object.
NameSpecifies the name of the Aggregate to be displayed on the context menu.
ToolTipSpecifies the tooltip of the Aggregate to be displayed when the cursor hovers the object.