IMethodCallMessage.InArgCount Vlastnost

Definice

Obor názvů:

System.Runtime.Remoting.Messaging

Sestavení:

mscorlib.dll

Získá počet argumentů ve volání, které nejsou označeny jako out parametry.

public:
 property int InArgCount { int get(); };

public int InArgCount { [System.Security.SecurityCritical] get; }

[<get: System.Security.SecurityCritical>]
member this.InArgCount : int

Public ReadOnly Property InArgCount As Integer

Hodnota vlastnosti

Int32

Počet argumentů ve volání, které nejsou označeny jako out parametry.

Atributy

SecurityCriticalAttribute

Výjimky

SecurityException

Okamžitý volající provede volání prostřednictvím odkazu na rozhraní a nemá oprávnění k infrastruktuře.

Příklady

Následující příklad kódu ukazuje vlastní proxy, který přepíše RealProxy.Invoke za účelem zápisu informací o volání zprávy do konzoly.

   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.
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