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PrefixEndpointAddressMessageFilter Class

Represents a query that tests whether a message matches an EndpointAddress using a Longest-Prefix Match for the URI component.

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

public class PrefixEndpointAddressMessageFilter : MessageFilter

An EndpointAddress object includes a URI and an optional collection of addressing headers. The addressing and message headers are canonicalized to be compared for equality. If a parameter appears more than once in an EndpointAddress, the corresponding header must appear in the message at least that many times.

This filter performs the same query as EndpointAddressMessageFilter, except that the test for whether a message matches an endpoint address is done by a Longest-Prefix Match. This means that the URI specified in the filter does not have to match the message's URI exactly, but must be contained in that URI as a prefix. For example, if a filter specifies the address "", and a message is addressed to "", then the URI part of the filter query condition will be met. However, the header portion of the filter query still has to be done.

Internet Information Services (IIS) and the underlying file system (NTFS or FAT) are case-insensitive. URI comparisons done by this class are also case-insensitive. So, for example, is evaluated as equal to


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 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

.NET Framework

Supported in: 3.5, 3.0