HttpWebRequest.ProtocolVersion Vlastnost

Definice

Obor názvů:

System.Net

Sestavení:

System.Net.Requests.dll

Zdroj:

HttpWebRequest.cs

Získá nebo nastaví verzi HTTP, která se má použít pro požadavek.

public:
 property Version ^ ProtocolVersion { Version ^ get(); void set(Version ^ value); };

public Version ProtocolVersion { get; set; }

member this.ProtocolVersion : Version with get, set

Public Property ProtocolVersion As Version

Hodnota vlastnosti

Version

Verze PROTOKOLU HTTP, která se má použít pro požadavek. Výchozí formát je Version11.

Výjimky

ArgumentException

Verze PROTOKOLU HTTP je nastavená na jinou hodnotu než 1.0 nebo 1.1.

Příklady

Následující příklad kódu nastaví ProtocolVersion vlastnost.

// 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 );

// 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);

' Create a new 'HttpWebRequest' Object to the mentioned URL.
Dim myHttpWebRequest As HttpWebRequest = CType(WebRequest.Create("http://www.microsoft.com"), HttpWebRequest)
' Use the existing 'ProtocolVersion' , and display it onto the console.	
Console.WriteLine(ControlChars.Cr + "The '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.
Dim myHttpWebResponse As HttpWebResponse = CType(myHttpWebRequest.GetResponse(), HttpWebResponse)
Console.WriteLine(ControlChars.Cr + "The 'ProtocolVersion' of the protocol changed to {0}", myHttpWebRequest.ProtocolVersion)
Console.WriteLine(ControlChars.Cr + "The protocol version of the response object is {0}", myHttpWebResponse.ProtocolVersion)

Poznámky

Třída HttpWebRequest podporuje pouze verze 1.0 a 1.1 protokolu HTTP. Nastavení ProtocolVersion na jinou verzi vyvolá výjimku.

Poznámka

Pokud chcete nastavit verzi HTTP aktuálního požadavku, použijte Version10 pole HttpVersion a Version11 třídy.