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.NET Framework Class Library
WebRequest..::.Headers Property

When overridden in a descendant class, gets or sets the collection of header name/value pairs associated with the request.

Namespace:  System.Net
Assembly:  System (in System.dll)
Visual Basic
Public Overridable Property Headers As WebHeaderCollection
C#
public virtual WebHeaderCollection Headers { get; set; }
Visual C++
public:
virtual property WebHeaderCollection^ Headers {
    WebHeaderCollection^ get ();
    void set (WebHeaderCollection^ value);
}
F#
abstract Headers : WebHeaderCollection with get, set
override Headers : WebHeaderCollection with get, set

Property Value

Type: System.Net..::.WebHeaderCollection
A WebHeaderCollection containing the header name/value pairs associated with this request.
ExceptionCondition
NotImplementedException

Any attempt is made to get or set the property, when the property is not overridden in a descendant class.

The Headers property contains a WebHeaderCollection instance containing the header information to send to the Internet resource.

NoteNote

The WebRequest class is an abstract class. The actual behavior of WebRequest instances at run time is determined by the descendant class returned by the WebRequest..::.Create method. For more information about default values and exceptions, see the documentation for the descendant classes, such as HttpWebRequest and FileWebRequest.

The following example displays the header name/value pairs associated with this request.

Visual Basic

            ' Create a new request to the mentioned URL.    
            Dim myWebRequest As WebRequest = WebRequest.Create("http://www.contoso.com")

           ' Assign the response object of 'WebRequest' to a 'WebResponse' variable.

            Dim myWebResponse As WebResponse = myWebRequest.GetResponse()
           ' Release the resources of response object.

         myWebResponse.Close()
        Console.WriteLine(ControlChars.Cr + "The HttpHeaders are " + ControlChars.Cr + "{0}", myWebRequest.Headers)

C#

                     // Create a new request to the mentioned URL.    
            WebRequest myWebRequest=WebRequest.Create("http://www.contoso.com");        

            // Assign the response object of 'WebRequest' to a 'WebResponse' variable.
            WebResponse myWebResponse=myWebRequest.GetResponse();

            // Release the resources of response object.
            myWebResponse.Close();
            Console.WriteLine("\nThe HttpHeaders are \n{0}",myWebRequest.Headers);    
            
Visual C++
// Create a new request to the mentioned URL.
WebRequest^ myWebRequest = WebRequest::Create( "http://www.contoso.com" );

// Assign the response object of 'WebRequest' to a 'WebResponse' variable.
WebResponse^ myWebResponse = myWebRequest->GetResponse();

// Release the resources of response object.
myWebResponse->Close();
Console::WriteLine( "\nThe HttpHeaders are \n {0}", myWebRequest->Headers );

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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