ReturnMessage 类

定义

命名空间:

System.Runtime.Remoting.Messaging

程序集:

mscorlib.dll

保存为响应远程对象上的方法调用而返回的消息。

public ref class ReturnMessage : System::Runtime::Remoting::Messaging::IMethodReturnMessage

[System.Runtime.InteropServices.ComVisible(true)]
[System.Security.SecurityCritical]
public class ReturnMessage : System.Runtime.Remoting.Messaging.IMethodReturnMessage

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

Public Class ReturnMessage
Implements IMethodReturnMessage

继承

Object

ReturnMessage

属性

ComVisibleAttribute SecurityCriticalAttribute

实现

IMessage IMethodMessage IMethodReturnMessage

示例

[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

注意

此类在类级别发出链接需求和继承需求。 SecurityException当直接调用方或派生类没有基础结构权限时，将引发 。 有关安全要求的详细信息，请参阅 链接需求 和 继承需求。

构造函数

ReturnMessage(Exception, IMethodCallMessage)	初始化 ReturnMessage 类的新实例。
ReturnMessage(Object, Object[], Int32, LogicalCallContext, IMethodCallMessage)	使用方法调用后返回到调用方的所有信息来初始化 ReturnMessage 类的新实例。

属性

ArgCount	获取被调用方法的参数数目。
Args	获取传递给在远程对象上调用的方法的指定参数。
Exception	获取在远程方法调用期间引发的异常。
HasVarArgs	获取一个值，该值指示被调用方法是否接受数目可变的参数。
LogicalCallContext	获取被调用方法的 LogicalCallContext。
MethodBase	获取被调用方法的 MethodBase。
MethodName	获取被调用方法的名称。
MethodSignature	获取包含方法签名的 Type 对象的数组。
OutArgCount	获取被调用方法上的 out 或 ref 参数的数目。
OutArgs	获取作为 out 或 ref 参数传递给被调用方法的指定对象。
Properties	获取包含在当前 IDictionary 中的属性的 ReturnMessage。
ReturnValue	获取被调用方法所返回的对象。
TypeName	获取在其上调用远程方法的类型的名称。
Uri	获取或设置在其上调用远程方法的远程对象的 URI。

方法

Equals(Object)	确定指定对象是否等于当前对象。 (继承自 Object)
GetArg(Int32)	返回在方法调用期间传递给远程方法的指定参数。
GetArgName(Int32)	返回指定的方法参数的名称。
GetHashCode()	作为默认哈希函数。 (继承自 Object)
GetOutArg(Int32)	返回在远程方法调用期间作为 out 或 ref 参数传递的对象。
GetOutArgName(Int32)	返回传递给远程方法的指定的 out 或 ref 参数的名称。
GetType()	获取当前实例的 Type。 (继承自 Object)
MemberwiseClone()	创建当前 Object 的浅表副本。 (继承自 Object)
ToString()	返回表示当前对象的字符串。 (继承自 Object)