.NET Framework 4.5.2+
.NET Framework 4.5.2+
.NET Standard 2.0+
.NET Core 3.0+

IObjectSpace.GetExpressionEvaluator(EvaluatorContextDescriptor, CriteriaOperator) Method

Creates an ExpressionEvaluator object that is used to evaluate whether objects of the specified type satisfy a particular criteria.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v20.2.dll


ExpressionEvaluator GetExpressionEvaluator(
    EvaluatorContextDescriptor evaluatorContextDescriptor,
    CriteriaOperator criteria
Function GetExpressionEvaluator(
    evaluatorContextDescriptor As EvaluatorContextDescriptor,
    criteria As CriteriaOperator
) As ExpressionEvaluator


Name Type Description
evaluatorContextDescriptor DevExpress.Data.Filtering.Helpers.EvaluatorContextDescriptor

An EvaluatorContextDescriptor object.

criteria CriteriaOperator

A CriteiraOperator object that is the criteria used to in the expression to be evaluated.


Type Description

An ExpressionEvaluator object initialized for the specified type.


When implementing the IObjectSpace interface in the BaseObjectSpace class' descendant, you don't have to implement this method. The BaseObjectSpace.GetExpressionEvaluator method creates an instance of the DevExpress.Data.Filtering.Helpers.ExpressionEvaluator class.

See Also