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How to: Access HTTP-Specific Properties

  • Artigo

This sample shows how to turn off the HTTP Keep-alive behavior and get the protocol version number from the Web server.

Example

Dim HttpWReq As HttpWebRequest= _
    CType(WebRequest.Create("https://www.contoso.com"), HttpWebRequest)
' Turn off connection keep-alives.
HttpWReq.KeepAlive = False

Dim HttpWResp As HttpWebResponse = _
    CType(HttpWReq.GetResponse(), HttpWebResponse)

' Get the HTTP protocol version number returned by the server.
Dim ver As String = HttpWResp.ProtocolVersion.ToString()
HttpWResp.Close()

HttpWebRequest HttpWReq = 
    (HttpWebRequest)WebRequest.Create("https://www.contoso.com");
// Turn off connection keep-alives.
HttpWReq.KeepAlive = false;

HttpWebResponse HttpWResp = (HttpWebResponse)HttpWReq.GetResponse();

// Get the HTTP protocol version number returned by the server.
String ver = HttpWResp.ProtocolVersion.ToString();
HttpWResp.Close();

Compiling the Code

This example requires:

  • References to the System.Net namespace.

See Also

Concepts

Accessing the Internet Through a Proxy
Using Application Protocols
HTTP