ProtocolVersion Property

HttpWebRequest.ProtocolVersion Property

 

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

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

public Version ProtocolVersion { get; set; }

Property Value

Type: System.Version

The HTTP version to use for the request. The default is HttpVersion.Version11.

Exception Condition
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.

System_CAPS_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.

// Create a new 'HttpWebRequest' Object to the mentioned URL.
HttpWebRequest myHttpWebRequest=(HttpWebRequest)WebRequest.Create("http://www.microsoft.com");
// Use the existing 'ProtocolVersion' , and display it onto the console.	
Console.WriteLine("\nThe 'ProtocolVersion' of the protocol used is {0}",myHttpWebRequest.ProtocolVersion);
// Set the 'ProtocolVersion' property of the 'HttpWebRequest' to 'Version1.0' .
myHttpWebRequest.ProtocolVersion=HttpVersion.Version10;
 // Assign the response object of 'HttpWebRequest' to a 'HttpWebResponse' variable.
 HttpWebResponse myHttpWebResponse=(HttpWebResponse)myHttpWebRequest.GetResponse();
Console.WriteLine("\nThe 'ProtocolVersion' of the protocol changed to {0}",myHttpWebRequest.ProtocolVersion);
Console.WriteLine("\nThe protocol version of the response object is {0}",myHttpWebResponse.ProtocolVersion);

.NET Framework
Available since 1.1
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