AggregateOperand.Single(CriteriaOperator) Method

Creates a new AggregateOperand which returns the single object from the AggregateOperand.CollectionProperty that matches the specified AggregateOperand.Condition. The collection must be empty or contain exactly one object.

Namespace: DevExpress.Data.Filtering

Assembly: DevExpress.Data.v18.2.dll

Declaration

C#

public AggregateOperand Single(
    CriteriaOperator aggregatedExpression
)

VB.NET

Public Function Single(
    aggregatedExpression As CriteriaOperator
) As AggregateOperand

Parameters

Name	Type	Description
aggregatedExpression	CriteriaOperator	A CriteriaOperator object which specifies the aggregate expression.

Returns

Type	Description
AggregateOperand	An AggregateOperand object which calculates an aggregate expression.