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MessageVersion.CreateVersion Method (EnvelopeVersion)

Creates a message version object by using WS-Addressing 1.0 and with a specified SOAP version.

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

public static MessageVersion CreateVersion(
	EnvelopeVersion envelopeVersion


Type: System.ServiceModel.EnvelopeVersion
The EnvelopeVersion that indicates the SOAP version to be used.

Return Value

Type: System.ServiceModel.Channels.MessageVersion
The MessageVersion using the specified version of SOAP and WS-Addressing 1.0.


The envelopeVersion is null.

The SOAP versions currently available are SOAP 1.1 and SOAP 1.2. There is an EnvelopeVersion for each version of SOAP that contains the data relevant to its use.

msgVersion = MessageVersion.CreateVersion(envVersion);

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

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.