diff --git a/websocket-sharp/Ext.cs b/websocket-sharp/Ext.cs
index fc8eabb9..34a87f29 100644
--- a/websocket-sharp/Ext.cs
+++ b/websocket-sharp/Ext.cs
@@ -167,7 +167,7 @@ namespace WebSocketSharp
     internal static string CheckIfValidCloseData (this byte [] data)
     {
       return data.Length > 125
-             ? "The payload length of a Close frame must be 125 bytes or less."
+             ? "'reason' length must be less."
              : null;
     }
 
@@ -178,10 +178,10 @@ namespace WebSocketSharp
              : null;
     }
 
-    internal static string CheckIfValidPingMessage (this string message)
+    internal static string CheckIfValidPingData (this byte [] data)
     {
-      return message != null && message.Length > 0 && Encoding.UTF8.GetBytes (message).Length > 125
-             ? "The payload length of a Ping frame must be 125 bytes or less."
+      return data.Length > 125
+             ? "'message' length must be less."
              : null;
     }
 
diff --git a/websocket-sharp/Server/IWebSocketServiceHost.cs b/websocket-sharp/Server/IWebSocketServiceHost.cs
index 85b8a206..3b5f68ab 100644
--- a/websocket-sharp/Server/IWebSocketServiceHost.cs
+++ b/websocket-sharp/Server/IWebSocketServiceHost.cs
@@ -89,17 +89,16 @@ namespace WebSocketSharp.Server
     Dictionary<string, bool> Broadping ();
 
     /// <summary>
-    /// Sends Pings with the specified <paramref name="message"/> to all clients of
-    /// the WebSocket service host.
+    /// Sends Pings with the specified <paramref name="data"/> to all clients of the WebSocket service host.
     /// </summary>
     /// <returns>
     /// A Dictionary&lt;string, bool&gt; that contains the collection of pairs of session ID and value
     /// indicating whether the WebSocket service host received a Pong from each client in a time.
     /// </returns>
-    /// <param name="message">
-    /// A <see cref="string"/> that contains a message to send.
+    /// <param name="data">
+    /// An array of <see cref="byte"/> that contains a message data to send.
     /// </param>
-    Dictionary<string, bool> Broadping (string message);
+    Dictionary<string, bool> Broadping (byte [] data);
 
     /// <summary>
     /// Close the WebSocket session with the specified <paramref name="id"/>.
diff --git a/websocket-sharp/Server/WebSocketService.cs b/websocket-sharp/Server/WebSocketService.cs
index 3b0ea584..e710723c 100644
--- a/websocket-sharp/Server/WebSocketService.cs
+++ b/websocket-sharp/Server/WebSocketService.cs
@@ -201,6 +201,11 @@ namespace WebSocketSharp.Server
       IsBound = true;
     }
 
+    internal bool Ping (byte [] data)
+    {
+      return _websocket.Ping (data);
+    }
+
     internal void SendAsync (byte [] data, Action completed)
     {
       _websocket.SendAsync (data, completed);
@@ -279,7 +284,7 @@ namespace WebSocketSharp.Server
     protected virtual Dictionary<string, bool> Broadping ()
     {
       return IsBound
-             ? _sessions.Broadping ()
+             ? _sessions.Broadping (new byte [] {})
              : null;
     }
 
@@ -299,7 +304,11 @@ namespace WebSocketSharp.Server
       if (!IsBound)
         return null;
 
-      var msg = message.CheckIfValidPingMessage ();
+      if (message == null || message.Length == 0)
+        return _sessions.Broadping (new byte [] {});
+
+      var data = Encoding.UTF8.GetBytes (message);
+      var msg = data.CheckIfValidPingData ();
       if (msg != null)
       {
         Log.Error (msg);
@@ -308,7 +317,7 @@ namespace WebSocketSharp.Server
         return null;
       }
 
-      return _sessions.Broadping (message);
+      return _sessions.Broadping (data);
     }
 
     /// <summary>
diff --git a/websocket-sharp/Server/WebSocketServiceHost.cs b/websocket-sharp/Server/WebSocketServiceHost.cs
index b4472494..6fc7c843 100644
--- a/websocket-sharp/Server/WebSocketServiceHost.cs
+++ b/websocket-sharp/Server/WebSocketServiceHost.cs
@@ -360,7 +360,7 @@ namespace WebSocketSharp.Server
     /// </returns>
     public Dictionary<string, bool> Broadping ()
     {
-      return _sessions.Broadping ();
+      return _sessions.Broadping (new byte [] {});
     }
 
     /// <summary>
@@ -375,14 +375,18 @@ namespace WebSocketSharp.Server
     /// </param>
     public Dictionary<string, bool> Broadping (string message)
     {
-      var msg = message.CheckIfValidPingMessage ();
+      if (message == null || message.Length == 0)
+        return _sessions.Broadping (new byte [] {});
+
+      var data = Encoding.UTF8.GetBytes (message);
+      var msg = data.CheckIfValidPingData ();
       if (msg != null)
       {
         Log.Error (msg);
         return null;
       }
 
-      return _sessions.Broadping (message);
+      return _sessions.Broadping (data);
     }
 
     /// <summary>
@@ -635,133 +639,18 @@ namespace WebSocketSharp.Server
     }
 
     /// <summary>
-    /// Sends Pings with the specified <paramref name="message"/> to all clients.
+    /// Sends Pings with the specified <paramref name="data"/> to all clients.
     /// </summary>
     /// <returns>
     /// A Dictionary&lt;string, bool&gt; that contains the collection of pairs of session ID and value
-    /// indicating whether the service host received the Pong from each client in a time.
-    /// </returns>
-    /// <param name="message">
-    /// A <see cref="string"/> that contains a message to send.
-    /// </param>
-    Dictionary<string, bool> IWebSocketServiceHost.Broadping (string message)
-    {
-      return _sessions.Broadping (message);
-    }
-
-    /// <summary>
-    /// Close the WebSocket session with the specified <paramref name="id"/>.
-    /// </summary>
-    /// <param name="id">
-    /// A <see cref="string"/> that contains a session ID to find.
-    /// </param>
-    void IWebSocketServiceHost.CloseSession (string id)
-    {
-      _sessions.StopServiceInstance (id);
-    }
-
-    /// <summary>
-    /// Close the WebSocket session with the specified <paramref name="code"/>, <paramref name="reason"/>
-    /// and <paramref name="id"/>.
-    /// </summary>
-    /// <param name="code">
-    /// A <see cref="ushort"/> that contains a status code indicating the reason for closure.
-    /// </param>
-    /// <param name="reason">
-    /// A <see cref="string"/> that contains the reason for closure.
-    /// </param>
-    /// <param name="id">
-    /// A <see cref="string"/> that contains a session ID to find.
-    /// </param>
-    void IWebSocketServiceHost.CloseSession (ushort code, string reason, string id)
-    {
-      _sessions.StopServiceInstance (code, reason, id);
-    }
-
-    /// <summary>
-    /// Close the WebSocket session with the specified <paramref name="code"/>, <paramref name="reason"/>
-    /// and <paramref name="id"/>.
-    /// </summary>
-    /// <param name="code">
-    /// A <see cref="CloseStatusCode"/> that contains a status code indicating the reason for closure.
-    /// </param>
-    /// <param name="reason">
-    /// A <see cref="string"/> that contains the reason for closure.
-    /// </param>
-    /// <param name="id">
-    /// A <see cref="string"/> that contains a session ID to find.
-    /// </param>
-    void IWebSocketServiceHost.CloseSession (CloseStatusCode code, string reason, string id)
-    {
-      _sessions.StopServiceInstance (code, reason, id);
-    }
-
-    /// <summary>
-    /// Sends a Ping to the client associated with the specified <paramref name="id"/>.
-    /// </summary>
-    /// <returns>
-    /// <c>true</c> if the WebSocket service host receives a Pong from the client in a time;
-    /// otherwise, <c>false</c>.
-    /// </returns>
-    /// <param name="id">
-    /// A <see cref="string"/> that contains a session ID that represents the destination for the Ping.
-    /// </param>
-    bool IWebSocketServiceHost.PingTo (string id)
-    {
-      return _sessions.PingTo (id);
-    }
-
-    /// <summary>
-    /// Sends a Ping with the specified <paramref name="message"/> to the client associated with
-    /// the specified <paramref name="id"/>.
-    /// </summary>
-    /// <returns>
-    /// <c>true</c> if the WebSocket service host receives a Pong from the client in a time;
-    /// otherwise, <c>false</c>.
-    /// </returns>
-    /// <param name="message">
-    /// A <see cref="string"/> that contains a message to send.
-    /// </param>
-    /// <param name="id">
-    /// A <see cref="string"/> that contains a session ID that represents the destination for the Ping.
-    /// </param>
-    bool IWebSocketServiceHost.PingTo (string message, string id)
-    {
-      return _sessions.PingTo (message, id);
-    }
-
-    /// <summary>
-    /// Sends a binary data to the client associated with the specified <paramref name="id"/>.
-    /// </summary>
-    /// <returns>
-    /// <c>true</c> if <paramref name="data"/> is successfully sent; otherwise, <c>false</c>.
-    /// </returns>
-    /// <param name="data">
-    /// An array of <see cref="byte"/> that contains a binary data to send.
-    /// </param>
-    /// <param name="id">
-    /// A <see cref="string"/> that contains a session ID that represents the destination for the data.
-    /// </param>
-    bool IWebSocketServiceHost.SendTo (byte [] data, string id)
-    {
-      return _sessions.SendTo (data, id);
-    }
-
-    /// <summary>
-    /// Sends a text data to the client associated with the specified <paramref name="id"/>.
-    /// </summary>
-    /// <returns>
-    /// <c>true</c> if <paramref name="data"/> is successfully sent; otherwise, <c>false</c>.
+    /// indicating whether the WebSocket service host received a Pong from each client in a time.
     /// </returns>
     /// <param name="data">
-    /// A <see cref="string"/> that contains a text data to send.
+    /// An array of <see cref="byte"/> that contains a message data to send.
     /// </param>
-    /// <param name="id">
-    /// A <see cref="string"/> that contains a session ID that represents the destination for the data.
-    /// </param>
-    bool IWebSocketServiceHost.SendTo (string data, string id)
+    Dictionary<string, bool> IWebSocketServiceHost.Broadping (byte [] data)
     {
-      return _sessions.SendTo (data, id);
+      return _sessions.Broadping (data);
     }
 
     /// <summary>
diff --git a/websocket-sharp/Server/WebSocketServiceHostManager.cs b/websocket-sharp/Server/WebSocketServiceHostManager.cs
index 4a622bb5..79fefc6c 100644
--- a/websocket-sharp/Server/WebSocketServiceHostManager.cs
+++ b/websocket-sharp/Server/WebSocketServiceHostManager.cs
@@ -176,6 +176,15 @@ namespace WebSocketSharp.Server
       }
     }
 
+    internal Dictionary<string, Dictionary<string, bool>> Broadping (byte [] data)
+    {
+      var result = new Dictionary<string, Dictionary<string, bool>> ();
+      foreach (var service in copy ())
+        result.Add (service.Key, service.Value.Broadping (data));
+
+      return result;
+    }
+
     internal bool Remove (string servicePath)
     {
       servicePath = HttpUtility.UrlDecode (servicePath).TrimEndSlash ();
@@ -348,11 +357,7 @@ namespace WebSocketSharp.Server
     /// </returns>
     public Dictionary<string, Dictionary<string, bool>> Broadping ()
     {
-      var result = new Dictionary<string, Dictionary<string, bool>> ();
-      foreach (var service in copy ())
-        result.Add (service.Key, service.Value.Broadping ());
-
-      return result;
+      return Broadping (new byte [] {});
     }
 
     /// <summary>
@@ -369,18 +374,18 @@ namespace WebSocketSharp.Server
     /// </param>
     public Dictionary<string, Dictionary<string, bool>> Broadping (string message)
     {
-      var msg = message.CheckIfValidPingMessage ();
+      if (message == null || message.Length == 0)
+        return Broadping (new byte [] {});
+
+      var data = Encoding.UTF8.GetBytes (message);
+      var msg = data.CheckIfValidPingData ();
       if (msg != null)
       {
         _logger.Error (msg);
         return null;
       }
 
-      var result = new Dictionary<string, Dictionary<string, bool>> ();
-      foreach (var service in copy ())
-        result.Add (service.Key, service.Value.Broadping (message));
-
-      return result;
+      return Broadping (data);
     }
 
     /// <summary>
@@ -410,7 +415,7 @@ namespace WebSocketSharp.Server
         return null;
       }
 
-      return host.Broadping ();
+      return host.Broadping (new byte [] {});
     }
 
     /// <summary>
@@ -430,7 +435,11 @@ namespace WebSocketSharp.Server
     /// </param>
     public Dictionary<string, bool> BroadpingTo (string message, string servicePath)
     {
-      var msg = message.CheckIfValidPingMessage () ?? servicePath.CheckIfValidServicePath ();
+      if (message == null || message.Length == 0)
+        return BroadpingTo (servicePath);
+
+      var data = Encoding.UTF8.GetBytes (message);
+      var msg = data.CheckIfValidPingData () ?? servicePath.CheckIfValidServicePath ();
       if (msg != null)
       {
         _logger.Error (msg);
@@ -444,7 +453,7 @@ namespace WebSocketSharp.Server
         return null;
       }
 
-      return host.Broadping (message);
+      return host.Broadping (data);
     }
 
     /// <summary>
@@ -459,7 +468,7 @@ namespace WebSocketSharp.Server
     /// </param>
     public void CloseSession (string id, string servicePath)
     {
-      var msg = id.CheckIfValidSessionID () ?? servicePath.CheckIfValidServicePath ();
+      var msg = servicePath.CheckIfValidServicePath ();
       if (msg != null)
       {
         _logger.Error (msg);
@@ -494,7 +503,7 @@ namespace WebSocketSharp.Server
     /// </param>
     public void CloseSession (ushort code, string reason, string id, string servicePath)
     {
-      var msg = id.CheckIfValidSessionID () ?? servicePath.CheckIfValidServicePath ();
+      var msg = servicePath.CheckIfValidServicePath ();
       if (msg != null)
       {
         _logger.Error (msg);
@@ -529,7 +538,7 @@ namespace WebSocketSharp.Server
     /// </param>
     public void CloseSession (CloseStatusCode code, string reason, string id, string servicePath)
     {
-      var msg = id.CheckIfValidSessionID () ?? servicePath.CheckIfValidServicePath ();
+      var msg = servicePath.CheckIfValidServicePath ();
       if (msg != null)
       {
         _logger.Error (msg);
@@ -591,7 +600,7 @@ namespace WebSocketSharp.Server
     /// </param>
     public bool PingTo (string id, string servicePath)
     {
-      var msg = id.CheckIfValidSessionID () ?? servicePath.CheckIfValidServicePath ();
+      var msg = servicePath.CheckIfValidServicePath ();
       if (msg != null)
       {
         _logger.Error (msg);
@@ -627,9 +636,7 @@ namespace WebSocketSharp.Server
     /// </param>
     public bool PingTo (string message, string id, string servicePath)
     {
-      var msg = (message.CheckIfValidPingMessage () ?? id.CheckIfValidSessionID ()) ??
-                servicePath.CheckIfValidServicePath ();
-
+      var msg = servicePath.CheckIfValidServicePath ();
       if (msg != null)
       {
         _logger.Error (msg);
@@ -664,9 +671,7 @@ namespace WebSocketSharp.Server
     /// </param>
     public bool SendTo (byte [] data, string id, string servicePath)
     {
-      var msg = (data.CheckIfValidSendData () ?? id.CheckIfValidSessionID ()) ??
-                servicePath.CheckIfValidServicePath ();
-
+      var msg = servicePath.CheckIfValidServicePath ();
       if (msg != null)
       {
         _logger.Error (msg);
@@ -701,9 +706,7 @@ namespace WebSocketSharp.Server
     /// </param>
     public bool SendTo (string data, string id, string servicePath)
     {
-      var msg = (data.CheckIfValidSendData () ?? id.CheckIfValidSessionID ()) ??
-                servicePath.CheckIfValidServicePath ();
-
+      var msg = servicePath.CheckIfValidServicePath ();
       if (msg != null)
       {
         _logger.Error (msg);
diff --git a/websocket-sharp/Server/WebSocketServiceManager.cs b/websocket-sharp/Server/WebSocketServiceManager.cs
index 4e17fe96..ce39722d 100644
--- a/websocket-sharp/Server/WebSocketServiceManager.cs
+++ b/websocket-sharp/Server/WebSocketServiceManager.cs
@@ -84,7 +84,7 @@ namespace WebSocketSharp.Server
     /// </value>
     public IEnumerable<string> ActiveIDs {
       get {
-        return from result in Broadping ()
+        return from result in Broadping (new byte [] {})
                where result.Value
                select result.Key;
       }
@@ -134,7 +134,7 @@ namespace WebSocketSharp.Server
     /// </value>
     public IEnumerable<string> InactiveIDs {
       get {
-        return from result in Broadping ()
+        return from result in Broadping (new byte [] {})
                where !result.Value
                select result.Key;
       }
@@ -345,38 +345,21 @@ namespace WebSocketSharp.Server
     }
 
     /// <summary>
-    /// Sends Pings to the clients of every <see cref="WebSocketService"/> instances managed by
-    /// the <see cref="WebSocketServiceManager"/>.
-    /// </summary>
-    /// <returns>
-    /// A Dictionary&lt;string, bool&gt; that contains the collection of pairs of ID and value indicating
-    /// whether each <see cref="WebSocketService"/> instance received a Pong from the client in a time.
-    /// </returns>
-    internal Dictionary<string, bool> Broadping ()
-    {
-      var result = new Dictionary<string, bool> ();
-      foreach (var session in copy ())
-        result.Add (session.Key, session.Value.Ping ());
-
-      return result;
-    }
-
-    /// <summary>
-    /// Sends Pings with the specified <paramref name="message"/> to the clients of every <see cref="WebSocketService"/>
+    /// Sends Pings with the specified <paramref name="data"/> to the clients of every <see cref="WebSocketService"/>
     /// instances managed by the <see cref="WebSocketServiceManager"/>.
     /// </summary>
     /// <returns>
     /// A Dictionary&lt;string, bool&gt; that contains the collection of pairs of ID and value indicating
     /// whether each <see cref="WebSocketService"/> instance received a Pong from the client in a time.
     /// </returns>
-    /// <param name="message">
-    /// A <see cref="string"/> that contains a message to send.
+    /// <param name="data">
+    /// An array of <see cref="byte"/> that contains a message data to send.
     /// </param>
-    internal Dictionary<string, bool> Broadping (string message)
+    internal Dictionary<string, bool> Broadping (byte [] data)
     {
       var result = new Dictionary<string, bool> ();
       foreach (var session in copy ())
-        result.Add (session.Key, session.Value.Ping (message));
+        result.Add (session.Key, session.Value.Ping (data));
 
       return result;
     }
diff --git a/websocket-sharp/WebSocket.cs b/websocket-sharp/WebSocket.cs
index e4b843f0..1a071f30 100644
--- a/websocket-sharp/WebSocket.cs
+++ b/websocket-sharp/WebSocket.cs
@@ -320,7 +320,7 @@ namespace WebSocketSharp
     public bool IsAlive {
       get {
         return _readyState == WebSocketState.OPEN
-               ? ping (new byte [] {})
+               ? Ping (new byte [] {})
                : false;
       }
     }
@@ -531,32 +531,21 @@ namespace WebSocketSharp
       return send (createHandshakeResponse ());
     }
 
-    private void close (CloseEventArgs eventArgs)
-    {
-      if (!Thread.CurrentThread.IsBackground && _exitReceiving != null)
-        if (!_exitReceiving.WaitOne (5 * 1000))
-          eventArgs.WasClean = false;
-
-      if (!closeResources ())
-        eventArgs.WasClean = false;
-
-      _readyState = WebSocketState.CLOSED;
-      OnClose.Emit (this, eventArgs);
-    }
-
     private void close (PayloadData data)
     {
       _logger.Debug ("Is this thread background?: " + Thread.CurrentThread.IsBackground);
+
       CloseEventArgs args = null;
       lock (_forClose)
       {
         if (_readyState == WebSocketState.CLOSING || _readyState == WebSocketState.CLOSED)
           return;
 
-        var state = _readyState;
+        var current = _readyState;
         _readyState = WebSocketState.CLOSING;
+
         args = new CloseEventArgs (data);
-        if (state == WebSocketState.CONNECTING)
+        if (current == WebSocketState.CONNECTING)
         {
           if (!_client)
           {
@@ -571,7 +560,17 @@ namespace WebSocketSharp
         }
       }
 
-      close (args);
+      if (!Thread.CurrentThread.IsBackground &&
+          _exitReceiving != null &&
+          !_exitReceiving.WaitOne (5 * 1000))
+        args.WasClean = false;
+
+      if (!closeResources ())
+        args.WasClean = false;
+
+      _readyState = WebSocketState.CLOSED;
+      OnClose.Emit (this, args);
+
       _logger.Trace ("Exit close method.");
     }
 
@@ -579,7 +578,12 @@ namespace WebSocketSharp
     private void close (HttpStatusCode code)
     {
       send (createHandshakeResponse (code));
-      closeResources ();
+      try {
+        closeServerResources ();
+      }
+      catch {
+      }
+      
       _readyState = WebSocketState.CLOSED;
     }
 
@@ -635,12 +639,11 @@ namespace WebSocketSharp
     // As server
     private void closeServerResources ()
     {
-      if (_context != null && _closeContext != null)
-      {
+      if (_closeContext != null)
         _closeContext ();
-        _stream = null;
-        _context = null;
-      }
+
+      _stream = null;
+      _context = null;
     }
 
     private bool concatenateFragments (Stream dest)
@@ -864,16 +867,6 @@ namespace WebSocketSharp
       OnOpen.Emit (this, EventArgs.Empty);
     }
 
-    private bool ping (byte [] data)
-    {
-      var frame = createControlFrame (Opcode.PING, new PayloadData (data), _client);
-      var timeOut = _client ? 5000 : 1000;
-
-      return send (frame)
-             ? _receivePong.WaitOne (timeOut)
-             : false;
-    }
-
     private void pong (PayloadData data)
     {
       var frame = createControlFrame (Opcode.PONG, data, _client);
@@ -1327,6 +1320,16 @@ namespace WebSocketSharp
       close (code);
     }
 
+    internal bool Ping (byte [] data)
+    {
+      var frame = createControlFrame (Opcode.PING, new PayloadData (data), _client);
+      var timeOut = _client ? 5000 : 1000;
+
+      return send (frame)
+             ? _receivePong.WaitOne (timeOut)
+             : false;
+    }
+
     #endregion
 
     #region Public Methods
@@ -1352,7 +1355,16 @@ namespace WebSocketSharp
     /// </param>
     public void Close (ushort code)
     {
-      Close (code, "");
+      var msg = code.CheckIfValidCloseStatusCode ();
+      if (msg != null)
+      {
+        _logger.Error (String.Format ("{0}\ncode: {1}", msg, code));
+        error (msg);
+
+        return;
+      }
+
+      close (new PayloadData (code.ToByteArray (ByteOrder.BIG)));
     }
 
     /// <summary>
@@ -1451,38 +1463,40 @@ namespace WebSocketSharp
     /// Sends a Ping using the WebSocket connection.
     /// </summary>
     /// <returns>
-    /// <c>true</c> if a <see cref="WebSocket"/> instance receives a Pong in a time; otherwise, <c>false</c>.
+    /// <c>true</c> if the <see cref="WebSocket"/> instance receives a Pong in a time;
+    /// otherwise, <c>false</c>.
     /// </returns>
     public bool Ping ()
     {
-      return ping (new byte [] {});
+      return Ping (new byte [] {});
     }
 
     /// <summary>
     /// Sends a Ping with the specified <paramref name="message"/> using the WebSocket connection.
     /// </summary>
     /// <param name="message">
-    /// A <see cref="string"/> that contains a message to send with a Ping.
+    /// A <see cref="string"/> that contains a message to send.
     /// </param>
     /// <returns>
-    /// <c>true</c> if a <see cref="WebSocket"/> instance receives a Pong in a time; otherwise, <c>false</c>.
+    /// <c>true</c> if the <see cref="WebSocket"/> instance receives a Pong in a time;
+    /// otherwise, <c>false</c>.
     /// </returns>
     public bool Ping (string message)
     {
-      if (message.IsNullOrEmpty ())
-        return ping (new byte [] {});
+      if (message == null || message.Length == 0)
+        return Ping (new byte [] {});
 
       var data = Encoding.UTF8.GetBytes (message);
-      if (data.Length > 125)
+      var msg = data.CheckIfValidPingData ();
+      if (msg != null)
       {
-        var msg = "The payload length of a Ping frame must be 125 bytes or less.";
         _logger.Error (msg);
         error (msg);
 
         return false;
       }
 
-      return ping (data);
+      return Ping (data);
     }
 
     /// <summary>