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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.v22.2.dll

NuGet Package: DevExpress.Data


public JoinOperand Exists(
    CriteriaOperator aggregatedExpression


Name Type Description
aggregatedExpression CriteriaOperator

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


Type Description

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

See Also