IMethodReturnMessage.Exception 屬性

定義

命名空間:

System.Runtime.Remoting.Messaging

組件:

mscorlib.dll

取得方法呼叫期間擲回的例外狀況。

public:
 property Exception ^ Exception { Exception ^ get(); };

public Exception Exception { get; }

public Exception Exception { [System.Security.SecurityCritical] get; }

member this.Exception : Exception

[<get: System.Security.SecurityCritical>]
member this.Exception : Exception

Public ReadOnly Property Exception As Exception

屬性值

Exception

方法呼叫的例外狀況物件，或者為 null，方法沒有擲回例外狀況的話。

屬性

SecurityCriticalAttribute

例外狀況

SecurityException

立即呼叫者透過對介面的參考進行呼叫，且沒有基礎結構權限。

範例

下列範例程式碼顯示會覆寫 RealProxy.Invoke 的自訂 Proxy，以撰寫傳回訊息資訊，包括方法是否擲回例外狀況。

virtual IMessage^ Invoke( IMessage^ myMessage ) override
{
   IMethodCallMessage^ myCallMessage = dynamic_cast<IMethodCallMessage^>(myMessage);

   IMethodReturnMessage^ myIMethodReturnMessage =
      RemotingServices::ExecuteMessage( myMarshalByRefObject, myCallMessage );
   if ( myIMethodReturnMessage->Exception != nullptr )
   {
      Console::WriteLine( "{0} raised an exception.",
         myIMethodReturnMessage->MethodName );
   }
   else
   {
      Console::WriteLine(  "{0} does not raise an exception.",
         myIMethodReturnMessage->MethodName );
   }

   return myIMethodReturnMessage;
}

public override IMessage Invoke(IMessage myMessage)
{
   IMethodCallMessage myCallMessage = (IMethodCallMessage)myMessage;

   IMethodReturnMessage myIMethodReturnMessage =
      RemotingServices.ExecuteMessage(myMarshalByRefObject,myCallMessage);
   if(myIMethodReturnMessage.Exception != null)
      Console.WriteLine(myIMethodReturnMessage.MethodName +
         " raised an exception.");
   else
      Console.WriteLine(myIMethodReturnMessage.MethodName +
         " does not raised an exception.");

   return myIMethodReturnMessage;
}

Public Overrides Function Invoke(myMessage As IMessage) As IMessage
   Dim myCallMessage As IMethodCallMessage = CType(myMessage, IMethodCallMessage)
   
   Dim myIMethodReturnMessage As IMethodReturnMessage = RemotingServices.ExecuteMessage _
                                                   (myMarshalByRefObject, myCallMessage)
   If Not (myIMethodReturnMessage.Exception Is Nothing) Then
      Console.WriteLine(myIMethodReturnMessage.MethodName + " raised an exception.")
   Else
      Console.WriteLine(myIMethodReturnMessage.MethodName + " does not raised an exception.")
   End If
   
   Return myIMethodReturnMessage
End Function 'Invoke