ActionMessageFilter Class
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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

The ActionMessageFilter type exposes the following members.

Public methodActionMessageFilterInitializes a new instance of this class with the set of actions for which it tests.

Public propertyActionsGets a read-only copy of action strings for which this ActionMessageFilter tests.

Protected methodCreateFilterTable<FilterData>Creates a new filter table that tests efficiently on message actions. (Overrides MessageFilter.CreateFilterTable<FilterData>().)
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodMatch(Message)Tests whether a message's action matches one of the actions specified in this ActionMessageFilter. (Overrides MessageFilter.Match(Message).)
Public methodMatch(MessageBuffer)Tests whether a buffered message's action header matches one of the actions specified in this ActionMessageFilter. (Overrides MessageFilter.Match(MessageBuffer).)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)

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);

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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

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