IMethodReturnMessage.OutArgs 属性

定义

命名空间:

System.Runtime.Remoting.Messaging

程序集:

mscorlib.dll

返回标记为 ref 或 out 参数的指定参数。

public:
 property cli::array <System::Object ^> ^ OutArgs { cli::array <System::Object ^> ^ get(); };

public object[] OutArgs { [System.Security.SecurityCritical] get; }

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

Public ReadOnly Property OutArgs As Object()

属性值

Object[]

标记为 ref 或 out 参数的指定参数。

属性

SecurityCriticalAttribute

例外

SecurityException

直接调用方通过引用接口进行调用，且没有基础结构权限。

示例

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 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;
}

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

注解

虽然 属性OutArgs是冗余的，因为可以通过字段和GetOutArg方法实现OutArgCount相同的功能，但如果实现者知道何时将检索所有参数，则可能有性能优化可用。

警告

如果 Exception 不是 null，则在 System.IndexOutOfRangeException 访问 时 OutArgs 引发异常。