CriteriaOperatorValidator Class

Enables you to provide custom validation to the Expression Editor.

Namespace: DevExpress.DataAccess.ExpressionEditor

Assembly: DevExpress.DataAccess.v20.2.dll

NuGet Packages: DevExpress.DataAccess, DevExpress.WindowsDesktop.DataAccess

Declaration

C#

public class CriteriaOperatorValidator :
    ErrorsEvaluatorCriteriaValidator,
    ICriteriaWarningsValidator

VB.NET

Public Class CriteriaOperatorValidator
    Inherits ErrorsEvaluatorCriteriaValidator
    Implements ICriteriaWarningsValidator

Remarks

Use the CriteriaOperatorValidator.Visit method to provide custom expression validation logic.

Use the ErrorsEvaluatorCriteriaValidator.Validate method to validate custom expressions.

For a code sample, see the following example online: How to customize the Expression Editor.

Implements

IClientCriteriaVisitor

ICriteriaVisitor

Inheritance

Object

DevExpress.Data.BoundPropertyList

ErrorsEvaluatorCriteriaValidator

CriteriaOperatorValidator