Instructs Windows Communication Foundation (WCF) to disable the mandatory processing of headers not in the UnderstoodHeaders collection that must be understood according to the SOAP 1.1 and 1.2 specifications.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
By default the WCF client or service runtime throws an exception when it encounters a System.ServiceModel.Channels::MessageHeader in a message for which the MessageHeader::MustUnderstand property is true but the header is not in the MessageHeaders::UnderstoodHeaders property for the message.
To prevent this behavior, use the and set the ValidateMustUnderstand property to false. Typically, this is used in scenarios where the message content is meant to be relayed somewhere else and not processed, such as a router service.
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.