PingCompletedEventArgs.Reply 屬性

定義

命名空間:

System.Net.NetworkInformation

組件:

System.Net.Ping.dll

來源:

PingCompletedEventArgs.cs

取得物件，包含描述嘗試傳送網際網路控制訊息通訊協定 (ICMP) 回應要求訊息，以及接收對應的 ICMP 回應回覆訊息的資料。

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

屬性值

PingReply

PingReply 物件，描述 ICMP 回應要求的結果。

範例

下列程式代碼範例會實作用來回應 PingCompleted 事件的方法。 如需完整的範例，請參閱 PingCompletedEventArgs 類別概觀。

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();
}

備註

如果的值Status不是 Success，您就不應該使用 、 Options和 Buffer 屬性所RoundtripTime傳回的值。 RoundtripTime屬性 Buffer 會傳回零，而 Options 屬性會傳回 null。