[Expand]General Information
[Expand]WinForms Controls
[Expand]ASP.NET Controls and MVC Extensions
[Expand]ASP.NET Bootstrap Controls
[Expand]ASP.NET Core Bootstrap Controls
[Expand]WPF Controls
[Expand]Xamarin Controls
[Expand]Windows 10 App Controls
[Expand]Office File API
[Expand]Reporting
[Expand]Report and Dashboard Server
[Expand]Dashboard
[Expand]eXpressApp Framework
[Expand]eXpress Persistent Objects
[Expand]CodeRush
[Expand]CodeRush Classic
[Collapse]Cross-Platform Core Libraries
 [Expand]DevExpress Data Library
 [Expand]DevExpress Pivot Grid Core Library
 [Expand]Miscellaneous
 [Collapse]API Reference
  [Expand]DevExpress.Data
  [Expand]DevExpress.Data.Browsing
  [Expand]DevExpress.Data.Browsing.Design
  [Expand]DevExpress.Data.Camera
  [Expand]DevExpress.Data.Controls
  [Expand]DevExpress.Data.Controls.ExpressionEditor
  [Expand]DevExpress.Data.Entity
  [Collapse]DevExpress.Data.Filtering
    Aggregate Enumeration
   [Expand]AggregateOperand Class
   [Expand]BaseNodeEventArgs Class
   [Expand]BetweenOperator Class
   [Expand]BinaryOperator Class
    BinaryOperatorType Enumeration
   [Expand]ConstantValue Class
   [Collapse]ContainsOperator Class
     ContainsOperator Members
    [Expand]ContainsOperator Constructor
   [Expand]CriteriaOperator Class
   [Expand]CriteriaOperatorCollection Class
   [Expand]EnumProcessingHelper Class
    FilterCondition Enumeration
    FindPanelParserKind Enumeration
    FunctionCategory Enumeration
   [Expand]FunctionOperator Class
    FunctionOperatorType Enumeration
   [Expand]GroupOperator Class
    GroupOperatorType Enumeration
   [Expand]IClientCriteriaVisitor Interface
   [Expand]ICriteriaVisitor Interface
   [Expand]ICustomFunctionOperator Interface
   [Expand]ICustomFunctionOperatorBrowsable Interface
   [Expand]ICustomFunctionOperatorCompileable Interface
   [Expand]ICustomFunctionOperatorCompileableWithCaseSensitivity Interface
   [Expand]ICustomFunctionOperatorConvertibleToExpression Interface
   [Expand]ICustomFunctionOperatorEvaluatableWithCaseSensitivity Interface
   [Expand]ICustomFunctionOperatorFormattable Interface
   [Expand]InOperator Class
   [Expand]JoinOperand Class
   [Expand]NotOperator Class
   [Expand]NullOperator Class
   [Expand]OperandParameter Class
   [Expand]OperandProperty Class
   [Expand]OperandValue Class
   [Expand]UnaryOperator Class
    UnaryOperatorType Enumeration
  [Expand]DevExpress.Data.Filtering.Exceptions
  [Expand]DevExpress.Data.Filtering.Helpers
  [Expand]DevExpress.Data.Linq
  [Expand]DevExpress.Data.ODataLinq
  [Expand]DevExpress.Data.PivotGrid
  [Expand]DevExpress.Data.PLinq
  [Expand]DevExpress.Data.TreeList
  [Expand]DevExpress.Data.Utils
  [Expand]DevExpress.Data.Utils.ServiceModel
  [Expand]DevExpress.Data.WcfLinq
  [Expand]DevExpress.Data.WizardFramework
  [Expand]DevExpress.Data.XtraReports.DataProviders
  [Expand]DevExpress.Data.XtraReports.Labels
  [Expand]DevExpress.Data.XtraReports.ServiceModel
  [Expand]DevExpress.Data.XtraReports.ServiceModel.DataContracts
  [Expand]DevExpress.Data.XtraReports.Wizard
  [Expand]DevExpress.Data.XtraReports.Wizard.Presenters
  [Expand]DevExpress.Data.XtraReports.Wizard.Views
  [Expand]DevExpress.DataAccess
  [Expand]DevExpress.DataAccess.ConnectionParameters
  [Expand]DevExpress.DataAccess.DataFederation
  [Expand]DevExpress.DataAccess.EntityFramework
  [Expand]DevExpress.DataAccess.Excel
  [Expand]DevExpress.DataAccess.ExpressionEditor
  [Expand]DevExpress.DataAccess.Json
  [Expand]DevExpress.DataAccess.Localization
  [Expand]DevExpress.DataAccess.ObjectBinding
  [Expand]DevExpress.DataAccess.Sql
  [Expand]DevExpress.DataAccess.Sql.DataApi
  [Expand]DevExpress.DataAccess.UI
  [Expand]DevExpress.DataAccess.UI.Design
  [Expand]DevExpress.DataAccess.UI.EntityFramework
  [Expand]DevExpress.DataAccess.UI.Excel
  [Expand]DevExpress.DataAccess.UI.Localization
  [Expand]DevExpress.DataAccess.UI.ObjectBinding
  [Expand]DevExpress.DataAccess.UI.Sql
  [Expand]DevExpress.DataAccess.UI.Wizard
  [Expand]DevExpress.DataAccess.UI.Wizard.Services
  [Expand]DevExpress.DataAccess.UI.Wizard.Views
  [Expand]DevExpress.DataAccess.Web
  [Expand]DevExpress.DataAccess.Wizard
  [Expand]DevExpress.DataAccess.Wizard.Model
  [Expand]DevExpress.DataAccess.Wizard.Presenters
  [Expand]DevExpress.DataAccess.Wizard.Services
  [Expand]DevExpress.DataAccess.Wizard.Views
  [Expand]DevExpress.Diagram.Core
  [Expand]DevExpress.Diagram.Core.Layout
  [Expand]DevExpress.Diagram.Core.Localization
  [Expand]DevExpress.Diagram.Core.Shapes
  [Expand]DevExpress.Diagram.Core.Themes
  [Expand]DevExpress.DocumentServices.ServiceModel
  [Expand]DevExpress.DocumentServices.ServiceModel.Client
  [Expand]DevExpress.DocumentServices.ServiceModel.DataContracts
  [Expand]DevExpress.DocumentView
  [Expand]DevExpress.Entity.Model
  [Expand]DevExpress.Entity.ProjectModel
  [Expand]DevExpress.Export
  [Expand]DevExpress.Export.Xl
  [Expand]DevExpress.Map
  [Expand]DevExpress.Mvvm
  [Expand]DevExpress.Mvvm.DataAnnotations
  [Expand]DevExpress.Mvvm.DataModel
  [Expand]DevExpress.Mvvm.Gantt
  [Expand]DevExpress.Mvvm.ModuleInjection
  [Expand]DevExpress.Mvvm.UI
  [Expand]DevExpress.Mvvm.Utils
  [Expand]DevExpress.Mvvm.ViewModel
  [Expand]DevExpress.Office.Crypto
  [Expand]DevExpress.PivotGrid.Printing
  [Expand]DevExpress.Printing
  [Expand]DevExpress.Printing.Core
  [Expand]DevExpress.Printing.ExportHelpers
  [Expand]DevExpress.ReportServer.Printing
  [Expand]DevExpress.ReportServer.Printing.Services
  [Expand]DevExpress.ReportServer.ServiceModel.Client
  [Expand]DevExpress.ReportServer.ServiceModel.ConnectionProviders
  [Expand]DevExpress.ReportServer.ServiceModel.DataContracts
  [Expand]DevExpress.Schedule
  [Expand]DevExpress.Security.Resources
  [Expand]DevExpress.Services
  [Expand]DevExpress.Sparkline
  [Expand]DevExpress.TreeMap
  [Expand]DevExpress.Utils
  [Expand]DevExpress.Utils.Commands
  [Expand]DevExpress.Utils.Controls
  [Expand]DevExpress.Utils.Filtering.Internal
  [Expand]DevExpress.Utils.IoC
  [Expand]DevExpress.Utils.Localization
  [Expand]DevExpress.Utils.Serializing.Helpers
  [Expand]DevExpress.Utils.Svg
  [Expand]DevExpress.WebUtils
  [Expand]DevExpress.Xpf.Core
  [Expand]DevExpress.Xpf.Printing
  [Expand]DevExpress.Xpo
  [Expand]DevExpress.Xpo.DB
  [Expand]DevExpress.Xpo.DB.Exceptions
  [Expand]DevExpress.Xpo.DB.Helpers
  [Expand]DevExpress.Xpo.Helpers
  [Expand]DevExpress.XtraCharts
  [Expand]DevExpress.XtraCharts.Localization
  [Expand]DevExpress.XtraCharts.Native
  [Expand]DevExpress.XtraCharts.Printing
  [Expand]DevExpress.XtraEditors
  [Expand]DevExpress.XtraEditors.DXErrorProvider
  [Expand]DevExpress.XtraExport.Csv
  [Expand]DevExpress.XtraGauges.Base
  [Expand]DevExpress.XtraGauges.Core
  [Expand]DevExpress.XtraGauges.Core.Base
  [Expand]DevExpress.XtraGauges.Core.Drawing
  [Expand]DevExpress.XtraGauges.Core.Localization
  [Expand]DevExpress.XtraGauges.Core.Model
  [Expand]DevExpress.XtraGauges.Core.Primitive
  [Expand]DevExpress.XtraGrid
  [Expand]DevExpress.XtraPivotGrid
  [Expand]DevExpress.XtraPivotGrid.Customization
  [Expand]DevExpress.XtraPivotGrid.Data
  [Expand]DevExpress.XtraPivotGrid.Localization
  [Expand]DevExpress.XtraPivotGrid.Selection
  [Expand]DevExpress.XtraPrinting
  [Expand]DevExpress.XtraPrinting.BarCode
  [Expand]DevExpress.XtraPrinting.Caching
  [Expand]DevExpress.XtraPrinting.DataNodes
  [Expand]DevExpress.XtraPrinting.Drawing
  [Expand]DevExpress.XtraPrinting.Export
  [Expand]DevExpress.XtraPrinting.Export.Web
  [Expand]DevExpress.XtraPrinting.Localization
  [Expand]DevExpress.XtraPrinting.Native
  [Expand]DevExpress.XtraPrinting.Shape
  [Expand]DevExpress.XtraPrinting.Shape.Native
  [Expand]DevExpress.XtraPrinting.WebClientUIControl.DataContracts
  [Expand]DevExpress.XtraPrinting.XamlExport
  [Expand]DevExpress.XtraPrintingLinks
  [Expand]DevExpress.XtraReports
  [Expand]DevExpress.XtraReports.Design
  [Expand]DevExpress.XtraReports.Parameters
  [Expand]DevExpress.XtraReports.ReportGeneration
  [Expand]DevExpress.XtraReports.UI
  [Expand]DevExpress.XtraScheduler
  [Expand]DevExpress.XtraScheduler.Compatibility
  [Expand]DevExpress.XtraScheduler.Drawing
  [Expand]DevExpress.XtraScheduler.Exchange
  [Expand]DevExpress.XtraScheduler.iCalendar
  [Expand]DevExpress.XtraScheduler.iCalendar.Components
  [Expand]DevExpress.XtraScheduler.Localization
  [Expand]DevExpress.XtraScheduler.Native
  [Expand]DevExpress.XtraScheduler.Outlook
  [Expand]DevExpress.XtraScheduler.Outlook.Interop
  [Expand]DevExpress.XtraScheduler.Reporting
  [Expand]DevExpress.XtraScheduler.Services
  [Expand]DevExpress.XtraScheduler.Services.Implementation
  [Expand]DevExpress.XtraScheduler.Tools
  [Expand]DevExpress.XtraScheduler.UI
  [Expand]DevExpress.XtraScheduler.Xml
  [Expand]DevExpress.XtraSpellChecker
  [Expand]DevExpress.XtraSpellChecker.Rules
[Expand]Tools and Utilities
 End-User Documentation
View this topic on docs.devexpress.com (Learn more)

ContainsOperator Class

An operator which checks if a collection contains at least one object matching a specific criteria.

Namespace:DevExpress.Data.Filtering
Assembly:DevExpress.Data.v19.1.dll

Expanded Syntax

Expanded Remarks

The ContainsOperator operator can be used to filter the contents of the DevExpress.Xpo.XPCollection.

It's also possible to use the CriteriaOperator.Parse method to create a CriteriaOperator operator for a specific expression.

Expanded Example

This sample code selects Person objects that contain at least one object in their Addresses collection property with the City property set to "Chicago"

The image below shows the result:

Expanded Inheritance Hierarchy

System.Object
    CriteriaOperator
       AggregateOperand
          ContainsOperator

Expanded See Also

Is this topic helpful?​​​​​​​