ActionMessageFilter Class

Represents a query that tests whether the action of a message is one of a specified set of actions.

Namespace: System.ServiceModel.Dispatcher
Assembly: System.ServiceModel (in system.servicemodel.dll)

public class ActionMessageFilter : MessageFilter
public class ActionMessageFilter extends MessageFilter
public class ActionMessageFilter extends MessageFilter
Not applicable.

It is invalid to construct an ActionMessageFilter with no actions.

This type is serializable as a DataContractAttribute.

The following example creates two ActionMessageFilters, gets the action string out of one of the filters using the Actions property, tests a message against the action filters directly, and displays the result of applying the filter.

using System;
using System.Collections.ObjectModel;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.ServiceModel.Dispatcher;

namespace UE.Wfc.Samples
    public static class ActionMessageFilterMatching
        public static void Main()
            // Create several action filters.
            ActionMessageFilter myActFltr = new ActionMessageFilter("1st Action", "2nd Action");
            ActionMessageFilter yourActFltr = new ActionMessageFilter("Your Action");

            // Display the ActionMessageFilter actions.
            ReadOnlyCollection<string> results = myActFltr.Actions;

            foreach (string result in results)

            // Create a message.
            Message message = Message.CreateMessage(MessageVersion.Soap12WSAddressing10, "myBody");

            // Test the message action against a single action filter.
            bool test1 = myActFltr.Match(message);
            bool test2 = yourActFltr.Match(message);
            System.Console.WriteLine("The result of test1 is {0}", test1);
            System.Console.WriteLine("The result of test2 is {0}", test2);


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

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