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ReturnMessage Class

Holds a message returned in response to a method call on a remote object.

For a list of all members of this type, see ReturnMessage Members.

System.Object
   System.Runtime.Remoting.Messaging.ReturnMessage

[Visual Basic]
Public Class ReturnMessage
   Implements IMethodReturnMessage, IMethodMessage, IMessage
[C#]
public class ReturnMessage : IMethodReturnMessage, IMethodMessage,
   IMessage
[C++]
public __gc class ReturnMessage : public IMethodReturnMessage,
   IMethodMessage, IMessage
[JScript]
public class ReturnMessage implements IMethodReturnMessage,
   IMethodMessage, IMessage

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Remarks

Note   This class makes a link demand and an inheritance demand at the class level. A SecurityException is thrown when either the immediate caller or the derived class does not have infrastructure permission. For details about security demands, see Link Demands and Inheritance Demands.

Example

[Visual Basic] 
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 'New
   
   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 'MyProxy

[C#] 
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;
   }
}

[C++] 
public __gc class MyProxy : public RealProxy 
{
    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;
    }

public:
    IMessage* Invoke(IMessage* myMessage) 
    {
        IMethodCallMessage* myCallMessage = dynamic_cast<IMethodCallMessage*>(myMessage);

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

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

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

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Namespace: System.Runtime.Remoting.Messaging

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

Assembly: Mscorlib (in Mscorlib.dll)

.NET Framework Security: 

See Also

ReturnMessage Members | System.Runtime.Remoting.Messaging Namespace

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