System.ServiceModel.Channels.MessageIDHeader class MessageIDHeader : AddressingHeader Documentation Code public UniqueId MessageId { get; } public static MessageIDHeader Create(UniqueId messageId, AddressingVersion addressingVersion) public static MessageIDHeader ReadHeader(XmlDictionaryReader reader, AddressingVersion version, string actor, bool mustUnderstand, bool relay) public static UniqueId ReadHeaderValue(XmlDictionaryReader reader, AddressingVersion version)