IMethodReturnMessage 接口

参考

定义

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

程序集:: mscorlib.dll

重要

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定义方法调用返回消息接口。

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

派生: 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

属性: ComVisibleAttribute

实现: IMessage IMethodMessage

示例

以下示例代码演示了一个自定义代理，该代理重写 RealProxy.Invoke 以将返回消息信息写入控制台。

[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

注解

方法调用返回消息表示对消息接收器末尾的对象上的方法调用的响应。 IMethodReturnMessage作为对远程对象调用的方法的结果生成的，用于将方法调用的结果返回给调用方。

属性

ArgCount	获取传递给该方法的参数的数目。 (继承自 IMethodMessage)
Args	获取传递给该方法的参数数组。 (继承自 IMethodMessage)
Exception	获取在方法调用期间引发的异常。
HasVarArgs	获取一个值，该值指示消息是否具有变量参数。 (继承自 IMethodMessage)
LogicalCallContext	获取当前方法调用的 LogicalCallContext。 (继承自 IMethodMessage)
MethodBase	获取被调用方法的 MethodBase。 (继承自 IMethodMessage)
MethodName	获取被调用方法的名称。 (继承自 IMethodMessage)
MethodSignature	获取包含方法签名的对象。 (继承自 IMethodMessage)
OutArgCount	获取方法调用中标记为 `ref` 或 `out` 参数的参数的数目。
OutArgs	返回标记为 `ref` 或 `out` 参数的指定参数。
Properties	获取表示消息属性集合的 IDictionary。 (继承自 IMessage)
ReturnValue	获取方法调用的返回值。
TypeName	获取要将该调用发送到的特定对象的完整 Type 名称。 (继承自 IMethodMessage)
Uri	获取要将该调用发送到的特定对象的 URI。 (继承自 IMethodMessage)

方法

GetArg(Int32)	获取作为 Object 的特定参数。 (继承自 IMethodMessage)
GetArgName(Int32)	获取传递给该方法的参数的名称。 (继承自 IMethodMessage)
GetOutArg(Int32)	返回标记为 `ref` 或 `out` 参数的指定参数。
GetOutArgName(Int32)	返回标记为 `ref` 或 `out` 参数的指定参数的名称。

适用于

IMethodReturnMessage 接口

定义

示例

注解

属性

方法

适用于

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