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WebException Constructor ()

WebException Constructor ()

Initializes a new instance of the WebException class.

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

public:
WebException ()
public WebException ()
public function WebException ()

The default constructor initializes a new instance of the WebException class. The Message property is initialized to a system-supplied message that describes the error. This message takes into account the current system culture. The InnerException and Response properties are initialized to a null reference (Nothing in Visual Basic). The Status property is initialized to RequestCanceled.

The following example throws a default WebException.

try
{
   // A 'Socket' object has been created.
   Socket^ httpSocket = gcnew Socket( AddressFamily::InterNetwork,SocketType::Stream,ProtocolType::Tcp );
   

   // The IPaddress of the unknown uri is resolved using the 'Dns::Resolve' method.

   IPHostEntry^ hostEntry = Dns::Resolve( "http://www.contoso.com" );

   IPAddress^ serverAddress = hostEntry->AddressList[ 0 ];
   IPEndPoint^ endPoint = gcnew IPEndPoint( serverAddress, 80 );
   httpSocket->Connect( endPoint );
   Console::WriteLine( "Connection created successfully" );
   httpSocket->Close();
}
catch ( SocketException^ e ) 
{
   String^ exp = e->Message;
   // Throw the WebException with no parameters.
   throw gcnew WebException;
}

try {
    // A 'Socket' object has been created.
    Socket httpSocket = new Socket(AddressFamily.InterNetwork,
        SocketType.Stream, ProtocolType.Tcp);
    // The IPaddress of the unknown uri is resolved using the
    // 'Dns.Resolve' method. 
    IPHostEntry hostEntry = Dns.Resolve("http://www.contoso.com");

    IPAddress serverAddress = (IPAddress)hostEntry.get_AddressList()
        .get_Item(0);
    IPEndPoint endPoint = new IPEndPoint(serverAddress, 80);
    httpSocket.Connect(endPoint);
    Console.WriteLine("Connection created successfully");
    httpSocket.Close();
}
catch (SocketException e) {
    String exp = e.get_Message();
    // Throw the WebException with no parameters.
    throw new WebException();
}

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

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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