AggregateOperand.TopLevel(Aggregate, CriteriaOperator) Method

Creates a new top-level AggregateOperand that returns values calculated by the given custom aggregate expression.

Namespace: DevExpress.Data.Filtering

Assembly: DevExpress.Data.v20.2.dll

NuGet Packages: DevExpress.Data, DevExpress.WindowsDesktop.Data

Declaration

C#

public static AggregateOperand TopLevel(
    Aggregate type,
    CriteriaOperator aggregatedExpression = null
)

VB.NET

Public Shared Function TopLevel(
    type As Aggregate,
    aggregatedExpression As CriteriaOperator = Nothing
) As AggregateOperand

Parameters

Name	Type	Description
type	Aggregate	An Aggregate enumeration value that specifies the type of the aggregate operator. This value is assigned to the AggregateOperand.AggregateType property.

Optional Parameters

Name	Type	Default	Description
aggregatedExpression	CriteriaOperator	*null*	An aggregated expression assigned to the AggregateOperand.AggregatedExpression property.

Returns

Type	Description
AggregateOperand	An operand collection passed to a custom aggregate function.