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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

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.
			HttpWebRequest myHttpWebRequest=(HttpWebRequest)WebRequest.Create("");
			Console.WriteLine("\nThe 'ProtocolVersion' of the protocol before assignment is :{0}",myHttpWebRequest.ProtocolVersion);
			// Assign Version10 to ProtocolVersion.
			// Assign the response object of 'HttpWebRequest' to a 'HttpWebResponse' variable.
			HttpWebResponse myHttpWebResponse=(HttpWebResponse)myHttpWebRequest.GetResponse();
			Console.WriteLine("\nThe 'ProtocolVersion' of the protocol after  assignment is :{0}",myHttpWebRequest.ProtocolVersion);
			Console.WriteLine("\nThe 'ProtocolVersion' of the response object is :{0}",myHttpWebResponse.ProtocolVersion);
// Create a 'HttpWebRequest' object.
HttpWebRequest* myHttpWebRequest =
Console::WriteLine(S"\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=dynamic_cast<HttpWebResponse*>(myHttpWebRequest->GetResponse());
Console::WriteLine(S"\nThe 'ProtocolVersion' of the protocol after  assignment is : {0}",
Console::WriteLine(S"\nThe 'ProtocolVersion' of the response Object* is : {0}",


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 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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.

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0