AggregateOperand.Exists(CriteriaOperator) Method

Initializes a new AggregateOperand instance that evaluates whether the object that corresponds to the specified aggregatedExpression exists. The new operand computes the aggregate value against elements of the current operand’s CollectionProperty that match the current operand’s Condition.

Namespace: DevExpress.Data.Filtering

Assembly: DevExpress.XamarinForms.Core.dll

Declaration

public AggregateOperand Exists(
    CriteriaOperator aggregatedExpression
)

Parameters

Name	Type	Description
aggregatedExpression	CriteriaOperator	The operator that specifies a condition to which objects from the collection should correspond.

Returns

Type	Description
AggregateOperand	The new Exist operand.