PingCompletedEventArgs.Reply Eigenschaft

Definition

Ruft ein Objekt mit Daten ab, die den Versuch beschreiben, eine ICMP (Internet Control Message Protocol)-Echoanfragemeldung zu senden und eine entsprechende ICMP-Echoantwortmeldung zu empfangen.Gets an object that contains data that describes an attempt to send an Internet Control Message Protocol (ICMP) echo request message and receive a corresponding ICMP echo reply message.

public:
 property System::Net::NetworkInformation::PingReply ^ Reply { System::Net::NetworkInformation::PingReply ^ get(); };
public System.Net.NetworkInformation.PingReply Reply { get; }
member this.Reply : System.Net.NetworkInformation.PingReply
Public ReadOnly Property Reply As PingReply

Eigenschaftswert

Ein PingReply-Objekt, das die Ergebnisse der ICMP-Echoanfrage beschreibt.A PingReply object that describes the results of the ICMP echo request.

Beispiele

Das folgende Codebeispiel implementiert eine-Methode, die verwendet wird, um PingCompleted auf ein-Ereignis zu reagieren.The following code example implements a method that is used to respond to a PingCompleted event. Das komplette Beispiel finden Sie in der PingCompletedEventArgs Übersicht über die-Klasse.For the complete example, see the PingCompletedEventArgs class overview.

void PingCompletedCallback( Object^ /*sender*/, PingCompletedEventArgs^ e )
{
   
   // If the operation was canceled, display a message to the user.
   if ( e->Cancelled )
   {
      Console::WriteLine( "Ping canceled." );
      
      // Let the main thread resume. 
      // UserToken is the AutoResetEvent object that the main thread 
      // is waiting for.
      (dynamic_cast<AutoResetEvent^>(e->UserState))->Set();
   }

   
   // If an error occurred, display the exception to the user.
   if ( e->Error != nullptr )
   {
      Console::WriteLine( "Ping failed:" );
      Console::WriteLine( e->Error->ToString() );
      
      // Let the main thread resume. 
      (dynamic_cast<AutoResetEvent^>(e->UserState))->Set();
   }

   PingReply ^ reply = e->Reply;
   DisplayReply( reply );
   
   // Let the main thread resume.
   (dynamic_cast<AutoResetEvent^>(e->UserState))->Set();
}


private static void PingCompletedCallback (object sender, PingCompletedEventArgs e)
{
    // If the operation was canceled, display a message to the user.
    if (e.Cancelled)
    {
        Console.WriteLine ("Ping canceled.");

        // Let the main thread resume. 
        // UserToken is the AutoResetEvent object that the main thread 
        // is waiting for.
        ((AutoResetEvent)e.UserState).Set ();
    }

    // If an error occurred, display the exception to the user.
    if (e.Error != null)
    {
        Console.WriteLine ("Ping failed:");
        Console.WriteLine (e.Error.ToString ());

        // Let the main thread resume. 
        ((AutoResetEvent)e.UserState).Set();
    }

    PingReply reply = e.Reply;

    DisplayReply (reply);

    // Let the main thread resume.
    ((AutoResetEvent)e.UserState).Set();
}

Hinweise

Wenn der Wert von Status nicht Successist, sollten Sie nicht die Werte verwenden, die von den RoundtripTimeEigenschaften, Optionsund Buffer zurückgegeben werden.If the value of Status is not Success, you should not use the values that are returned by the RoundtripTime, Options, and Buffer properties. Die RoundtripTime - Buffer Eigenschaft und die-Eigenschaft geben NULL Options zurück, und nulldie-Eigenschaft gibt zurück.The RoundtripTime and Buffer properties will return zero, and the Options property will return null.

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