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.NET Framework 4.5.2+

CustomCriteriaManager.RegisterCriterion(ICustomCriteriaOperatorQueryable) Method

Registers a specified custom criterion to use in LINQ to XPO expressions.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v21.2.dll


public static void RegisterCriterion(
    ICustomCriteriaOperatorQueryable customCriterion


Name Type Description
customCriterion ICustomCriteriaOperatorQueryable

An ICustomCriteriaOperatorQueryable object implementing a custom criterion to register.


To access custom criteria registered via the RegisterCriterion and CustomCriteriaManager.RegisterCriteria method calls, call the CustomCriteriaManager.GetRegisteredCriteria function. To search for a specific registered custom criterion, call the CustomCriteriaManager.GetCriteria function.


The RegisterCriterion method throws an exception if null (Nothing in Visual Basic) is passed as the customCriterion.

See Also