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HttpVersion Class

Defines the HTTP version numbers that are supported by the HttpWebRequest and HttpWebResponse classes.

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

Public Class HttpVersion
Dim instance As HttpVersion

public class HttpVersion
public class HttpVersion

The HttpVersion class defines the HTTP versions that are supported by the HttpWebRequest and HttpWebResponse classes. The HTTP version number is used to control version-specific features of HTTP, such as pipelining and chunking.

The following example demonstrates the use of HttpVersion.

' Create a 'HttpWebRequest' object.
Dim myHttpWebRequest As HttpWebRequest = CType(WebRequest.Create(""), HttpWebRequest)
Console.WriteLine(ControlChars.Cr + "The 'ProtocolVersion' of the protocol before assignment is :{0}", myHttpWebRequest.ProtocolVersion)
' Assign Version10 to ProtocolVersion.
myHttpWebRequest.ProtocolVersion = HttpVersion.Version10
' The response object of 'HttpWebRequest' is assigned to a 'HttpWebResponse' variable.
Dim myHttpWebResponse As HttpWebResponse = CType(myHttpWebRequest.GetResponse(), HttpWebResponse)
Console.WriteLine(ControlChars.Cr + "The 'ProtocolVersion' of the protocol after  assignment is :{0}", myHttpWebRequest.ProtocolVersion)
Console.WriteLine(ControlChars.Cr + "The 'ProtocolVersion' of the response object is :{0}", myHttpWebResponse.ProtocolVersion)

// Create a 'HttpWebRequest' object.
HttpWebRequest myHttpWebRequest = (HttpWebRequest)
Console.WriteLine("\nThe 'ProtocolVersion' of the protocol "
    + "before assignment is :{0}", 
// Assign Version10 to ProtocolVersion.
// Assign the response object of 'HttpWebRequest' to a 
//    'HttpWebResponse' variable.
HttpWebResponse myHttpWebResponse = (HttpWebResponse)
Console.WriteLine("\nThe 'ProtocolVersion' of the protocol after "
    + "assignment is :{0}",myHttpWebRequest.get_ProtocolVersion());
Console.WriteLine("\nThe 'ProtocolVersion' of the response object"
    + " is :{0}", myHttpWebResponse.get_ProtocolVersion());


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 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0