IMethodCallMessage.InArgCount 属性

定义

获取调用中未标记为 out 参数的参数数目。Gets the number of arguments in the call that are not marked as out parameters.

public:
 property int InArgCount { int get(); };
[get: System.Security.SecurityCritical]
public int InArgCount { get; }
member this.InArgCount : int
Public ReadOnly Property InArgCount As Integer

属性值

调用中未标记为 out 参数的参数数目。The number of arguments in the call that are not marked as out parameters.

属性

异常

直接调用方通过引用接口进行调用,且没有基础结构权限。The immediate caller makes the call through a reference to the interface and does not have infrastructure permission.

示例

下面的示例代码演示了一个重写 RealProxy 的自定义代理, 以便将调用消息信息写入控制台。The following example code shows a custom proxy that overrides RealProxy.Invoke in order to write the call message information to the console.

   virtual IMessage^ Invoke( IMessage^ myIMessage ) override
   {
      Console::WriteLine( "MyProxy::Invoke Start" );
      Console::WriteLine( "" );
      ReturnMessage^ myReturnMessage = nullptr;
      if ( dynamic_cast<IMethodCallMessage^>(myIMessage) )
      {
         Console::WriteLine( "Message is of type 'IMethodCallMessage*'." );
         Console::WriteLine( "" );
         IMethodCallMessage^ myIMethodCallMessage;
         myIMethodCallMessage = dynamic_cast<IMethodCallMessage^>(myIMessage);
         Console::WriteLine( "InArgCount is  : {0}", myIMethodCallMessage->InArgCount );
         IEnumerator^ myEnum = myIMethodCallMessage->InArgs->GetEnumerator();
         while ( myEnum->MoveNext() )
         {
            Object^ myObj = safe_cast<Object^>(myEnum->Current);
            Console::WriteLine( "InArgs is : {0}", myObj );
         }

         for ( int i = 0; i < myIMethodCallMessage->InArgCount; i++ )
         {
            Console::WriteLine( "GetArgName({0}) is : {1}", i, myIMethodCallMessage->GetArgName( i ) );
            Console::WriteLine( "GetInArg({0}) is : {0}", i, myIMethodCallMessage->GetInArg( i ) );

         }
         Console::WriteLine( "" );
      }
      else
      if ( dynamic_cast<IMethodReturnMessage^>(myIMessage) )
            Console::WriteLine( "Message is of type 'IMethodReturnMessage*'." );

      // Build Return Message 
      myReturnMessage = gcnew ReturnMessage( 5,nullptr,0,nullptr,dynamic_cast<IMethodCallMessage^>(myIMessage) );
      Console::WriteLine( "MyProxy::Invoke - Finish" );
      return myReturnMessage;
   }
};

// The class used to obtain Metadata.
public ref class MyMarshalByRefClass: public MarshalByRefObject
{
public:
   int MyMethod( String^ str, double dbl, int i )
   {
      Console::WriteLine( "MyMarshalByRefClass::MyMethod {0} {1} {2}", str, dbl, i );
      return 0;
   }

};

    public override IMessage Invoke(IMessage myIMessage)
    {
       Console.WriteLine("MyProxy.Invoke Start");
       Console.WriteLine("");
       ReturnMessage myReturnMessage = null;
       
       if (myIMessage is IMethodCallMessage)
       {
          Console.WriteLine("Message is of type 'IMethodCallMessage'.");
          Console.WriteLine("");

          IMethodCallMessage myIMethodCallMessage;
          myIMethodCallMessage=(IMethodCallMessage)myIMessage;
          Console.WriteLine("InArgCount is  : " + 
                            myIMethodCallMessage.InArgCount.ToString());
       
          foreach (object myObj in myIMethodCallMessage.InArgs)
          {
             Console.WriteLine("InArgs is : " + myObj.ToString());
          }

          for(int i=0; i<myIMethodCallMessage.InArgCount; i++)
          {
             Console.WriteLine("GetArgName(" +i.ToString() +") is : " + 
                                     myIMethodCallMessage.GetArgName(i));
             Console.WriteLine("GetInArg("+i.ToString() +") is : " +
                            myIMethodCallMessage.GetInArg(i).ToString());
          }
          Console.WriteLine("");
       }
       else if (myIMessage is IMethodReturnMessage)
          Console.WriteLine("Message is of type 'IMethodReturnMessage'.");
                
       // Build Return Message
       myReturnMessage = new ReturnMessage(5,null,0,null,
                                     (IMethodCallMessage)myIMessage);
    
       Console.WriteLine("MyProxy.Invoke - Finish");
       return myReturnMessage;
    }


 }

 
 // The class used to obtain Metadata.
 [PermissionSet(SecurityAction.Demand, Name="FullTrust")]
 public class MyMarshalByRefClass : MarshalByRefObject
 {
    public int MyMethod(string str, double dbl, int i)
    {
       Console.WriteLine("MyMarshalByRefClass.MyMethod {0} {1} {2}", str, dbl, i);
       return 0;
    }
 }
   Public Overrides Function Invoke(ByVal myIMessage As IMessage) As IMessage
      Console.WriteLine("MyProxy.Invoke Start")
      Console.WriteLine("")

      If TypeOf myIMessage Is IMethodCallMessage Then
         Console.WriteLine("Message is of type 'IMethodCallMessage'.")
         Console.WriteLine("")

         Dim myIMethodCallMessage As IMethodCallMessage
         myIMethodCallMessage = CType(myIMessage, IMethodCallMessage)

         Console.WriteLine("InArgCount is : " + myIMethodCallMessage.InArgCount.ToString)
         Dim myObj As Object
         For Each myObj In myIMethodCallMessage.InArgs
            Console.WriteLine("InArgs is : " + myObj.ToString())
         Next

         Dim i As Integer
         For i = 0 To myIMethodCallMessage.InArgCount - 1
            Console.WriteLine("GetArgName(" + i.ToString() + ") is : " + myIMethodCallMessage.GetArgName(i))
            Console.WriteLine("GetInArg(" + i.ToString() + ") is : " + myIMethodCallMessage.GetInArg(i).ToString)
         Next i

         Console.WriteLine("")
      ElseIf TypeOf myIMessage Is IMethodReturnMessage Then
         Console.WriteLine("Message is of type 'IMethodReturnMessage'.")
      End If

      ' Build Return Message
      Dim myReturnMessage As New ReturnMessage(5, Nothing, 0, Nothing, _
                                 CType(myIMessage, IMethodCallMessage))

      Console.WriteLine("MyProxy.Invoke - Finish")
      Return myReturnMessage

   End Function 'Invoke



End Class

' The class used to obtain Metadata.
<PermissionSet(SecurityAction.Demand, Name:="FullTrust")> _
Public Class MyMarshalByRefClass
   Inherits MarshalByRefObject

   Public Function MyMethod(ByVal str As String, ByVal dbl As Double, ByVal i As Integer) As Integer
      Console.WriteLine("MyMarshalByRefClass.MyMethod {0} {1} {2}", str, dbl, i)
      Return 0
   End Function 'MyMethod
End Class

安全性

SecurityPermission
用于处理基础结构代码。for operating with infrastructure code. 要求值: LinkDemand;权限值:InfrastructureDemand value: LinkDemand; Permission value: Infrastructure

适用于