JoinOperand.Exists(CriteriaOperator) Method

Creates a new JoinOperand which determines whether or not the count of elements that match the JoinOperand.Condition is greater than zero.

Namespace: DevExpress.Data.Filtering

Assembly: DevExpress.Data.v24.1.dll

NuGet Package: DevExpress.Data

Declaration

C#

public JoinOperand Exists(
    CriteriaOperator aggregatedExpression
)

VB.NET

Public Function Exists(
    aggregatedExpression As CriteriaOperator
) As JoinOperand

Parameters

Name	Type	Description
aggregatedExpression	CriteriaOperator	A CriteriaOperator object which specifies the aggregate expression. This parameter may be ignored in certain circumstances.

Returns

Type	Description
JoinOperand	An JoinOperand object which joins persistent objects on a specified condition, and calculates aggregate functions against matching objects.