IMethodReturnMessage 介面

參考

定義

命名空間:: System.Runtime.Remoting.Messaging

組件:: mscorlib.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

定義方法呼叫傳回訊息介面。

public interface class IMethodReturnMessage : System::Runtime::Remoting::Messaging::IMethodMessage

public interface IMethodReturnMessage : System.Runtime.Remoting.Messaging.IMethodMessage

[System.Runtime.InteropServices.ComVisible(true)]
public interface IMethodReturnMessage : System.Runtime.Remoting.Messaging.IMethodMessage

type IMethodReturnMessage = interface
    interface IMethodMessage
    interface IMessage

[<System.Runtime.InteropServices.ComVisible(true)>]
type IMethodReturnMessage = interface
    interface IMethodMessage
    interface IMessage

Public Interface IMethodReturnMessage
Implements IMethodMessage

衍生: System.Runtime.Remoting.Activation.IConstructionReturnMessage

System.Runtime.Remoting.Messaging.ConstructionResponse

System.Runtime.Remoting.Messaging.MethodResponse

System.Runtime.Remoting.Messaging.MethodReturnMessageWrapper

System.Runtime.Remoting.Messaging.ReturnMessage

屬性: ComVisibleAttribute

實作: IMessage IMethodMessage

範例

下列範例程式碼顯示可覆寫 RealProxy.Invoke 的自訂 Proxy，以便將傳回訊息資訊寫入主控台。

[System::Security::Permissions::SecurityPermissionAttribute
(System::Security::Permissions::SecurityAction::LinkDemand, 
Flags=System::Security::Permissions::SecurityPermissionFlag::Infrastructure)]
[System::Security::Permissions::SecurityPermissionAttribute
(System::Security::Permissions::SecurityAction::InheritanceDemand, 
Flags=System::Security::Permissions::SecurityPermissionFlag::Infrastructure)]
public ref class MyProxy: public RealProxy
{
private:
   String^ stringUri;
   MarshalByRefObject^ myMarshalByRefObject;

public:
   MyProxy( Type^ myType ) : RealProxy( myType )
   {
      myMarshalByRefObject = dynamic_cast<MarshalByRefObject^>(Activator::CreateInstance( myType ));
      ObjRef^ myObject = RemotingServices::Marshal( myMarshalByRefObject );
      stringUri = myObject->URI;
   }

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

      IMethodReturnMessage^ myIMethodReturnMessage =
         RemotingServices::ExecuteMessage( myMarshalByRefObject, myCallMessage );

      Console::WriteLine( "Method name : {0}", myIMethodReturnMessage->MethodName );
      Console::WriteLine( "The return value is : {0}", myIMethodReturnMessage->ReturnValue );

      // Get number of 'ref' and 'out' parameters.
      int myArgOutCount = myIMethodReturnMessage->OutArgCount;
      Console::WriteLine( "The number of 'ref', 'out' parameters are : {0}",
         myIMethodReturnMessage->OutArgCount );
      // Gets name and values of 'ref' and 'out' parameters.
      for ( int i = 0; i < myArgOutCount; i++ )
      {
         Console::WriteLine( "Name of argument {0} is '{1}'.",
            i, myIMethodReturnMessage->GetOutArgName( i ) );
         Console::WriteLine( "Value of argument {0} is '{1}'.",
            i, myIMethodReturnMessage->GetOutArg( i ) );
      }
      Console::WriteLine();
      array<Object^>^myObjectArray = myIMethodReturnMessage->OutArgs;
      for ( int i = 0; i < myObjectArray->Length; i++ )
         Console::WriteLine( "Value of argument {0} is '{1}' in OutArgs",
            i, myObjectArray[ i ] );
      return myIMethodReturnMessage;
   }
};

public class MyProxy : RealProxy
{
   String stringUri;
   MarshalByRefObject myMarshalByRefObject;

   public MyProxy(Type myType): base(myType)
   {
      myMarshalByRefObject = (MarshalByRefObject)Activator.CreateInstance(myType);
      ObjRef myObject = RemotingServices.Marshal(myMarshalByRefObject);
      stringUri = myObject.URI;
   }

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

      IMethodReturnMessage myIMethodReturnMessage =
         RemotingServices.ExecuteMessage(myMarshalByRefObject, myCallMessage);

      Console.WriteLine("Method name : " + myIMethodReturnMessage.MethodName);
      Console.WriteLine("The return value is : " + myIMethodReturnMessage.ReturnValue);

      // Get number of 'ref' and 'out' parameters.
      int myArgOutCount = myIMethodReturnMessage.OutArgCount;
      Console.WriteLine("The number of 'ref', 'out' parameters are : " +
         myIMethodReturnMessage.OutArgCount);
      // Gets name and values of 'ref' and 'out' parameters.
      for(int i = 0; i < myArgOutCount; i++)
      {
         Console.WriteLine("Name of argument {0} is '{1}'.",
            i, myIMethodReturnMessage.GetOutArgName(i));
         Console.WriteLine("Value of argument {0} is '{1}'.",
            i, myIMethodReturnMessage.GetOutArg(i));
      }
      Console.WriteLine();
      object[] myObjectArray = myIMethodReturnMessage.OutArgs;
      for(int i = 0; i < myObjectArray.Length; i++)
         Console.WriteLine("Value of argument {0} is '{1}' in OutArgs",
            i, myObjectArray[i]);
      return myIMethodReturnMessage;
   }
}

<PermissionSet(SecurityAction.Demand, Name:="FullTrust")> _
Public Class MyProxy
   Inherits RealProxy
   Private stringUri As String
   Private myMarshalByRefObject As MarshalByRefObject
   
   Public Sub New(myType As Type)
      MyBase.New(myType)
      myMarshalByRefObject = CType(Activator.CreateInstance(myType), MarshalByRefObject)
      Dim myObject As ObjRef = RemotingServices.Marshal(myMarshalByRefObject)
      stringUri = myObject.URI
   End Sub
   
   Public Overrides Function Invoke(myMessage As IMessage) As IMessage
      Dim myCallMessage As IMethodCallMessage = CType(myMessage, IMethodCallMessage)

      Dim myIMethodReturnMessage As IMethodReturnMessage = RemotingServices. _
         ExecuteMessage(myMarshalByRefObject, myCallMessage)

      Console.WriteLine("Method name : " + myIMethodReturnMessage.MethodName)
      Console.WriteLine("The return value is : " + myIMethodReturnMessage.ReturnValue)
      
      ' Get number of 'ref' and 'out' parameters.
      Dim myArgOutCount As Integer = myIMethodReturnMessage.OutArgCount
      Console.WriteLine("The number of 'ref', 'out' parameters are : " + _
         myIMethodReturnMessage.OutArgCount.ToString())
      ' Gets name and values of 'ref' and 'out' parameters.
      Dim i As Integer
      For i = 0 To myArgOutCount - 1
         Console.WriteLine("Name of argument {0} is '{1}'.", i, _
            myIMethodReturnMessage.GetOutArgName(i))
         Console.WriteLine("Value of argument {0} is '{1}'.", i, _
            myIMethodReturnMessage.GetOutArg(i))
      Next i
      Console.WriteLine()
      Dim myObjectArray As Object() = myIMethodReturnMessage.OutArgs
      For i = 0 To myObjectArray.Length - 1
         Console.WriteLine("Value of argument {0} is '{1}' in OutArgs", i, myObjectArray(i))
      Next i
      Return myIMethodReturnMessage
   End Function 'Invoke
End Class

備註

方法呼叫傳回訊息代表對訊息接收結尾物件上方法呼叫的回應。 IMethodReturnMessage會產生做為遠端物件上呼叫之方法的結果，並用來傳回呼叫端的方法結果。

屬性

ArgCount	取得傳遞給方法的引數數目。 (繼承來源 IMethodMessage)
Args	取得傳遞給方法的引數陣列。 (繼承來源 IMethodMessage)
Exception	取得方法呼叫期間擲回的例外狀況。
HasVarArgs	取得值，指出訊息是否具有變數引數。 (繼承來源 IMethodMessage)
LogicalCallContext	取得目前方法呼叫的 LogicalCallContext。 (繼承來源 IMethodMessage)
MethodBase	取得受呼叫方法的 MethodBase。 (繼承來源 IMethodMessage)
MethodName	取得受叫用方法的名稱。 (繼承來源 IMethodMessage)
MethodSignature	取得含有方法簽章的物件。 (繼承來源 IMethodMessage)
OutArgCount	取得方法呼叫中標記為 `ref` 或 `out` 參數的引數數目。
OutArgs	傳回標記為 `ref` 或 `out` 參數的指定引數。
Properties	取得 IDictionary，表示訊息之屬性的集合。 (繼承來源 IMessage)
ReturnValue	取得方法呼叫的傳回值。
TypeName	取得呼叫所預定的特定物件的完整 Type 名稱。 (繼承來源 IMethodMessage)
Uri	取得呼叫所預定的特定物件的 URI。 (繼承來源 IMethodMessage)

方法

GetArg(Int32)	取得當做 Object 的特定引數。 (繼承來源 IMethodMessage)
GetArgName(Int32)	取得傳遞給方法的引數的名稱。 (繼承來源 IMethodMessage)
GetOutArg(Int32)	傳回標記為 `ref` 或 `out` 參數的指定引數。
GetOutArgName(Int32)	傳回標記為 `ref` 或 `out` 參數的指定引數的名稱。

適用於

IMethodReturnMessage 介面

定義

範例

備註

屬性

方法

適用於

意見反應

其他資源