HttpWebRequest.ProtocolVersion Property

Gets or sets the version of HTTP to use for the request.

Namespace:  System.Net
Assembly:  System (in System.dll)

member ProtocolVersion : Version with get, set

Property Value

Type: System.Version
The HTTP version to use for the request. The default is HttpVersion.Version11.

ExceptionCondition
ArgumentException

The HTTP version is set to a value other than 1.0 or 1.1.

The HttpWebRequest class supports only versions 1.0 and 1.1 of HTTP. Setting ProtocolVersion to a different version throws an exception.

NoteNote

To set the HTTP version of the current request, use the Version10 and Version11 fields of the HttpVersion class.

The following code example sets the ProtocolVersion Property.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, 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.
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