IMethodMessage.LogicalCallContext Właściwość

Definicja

Przestrzeń nazw:

System.Runtime.Remoting.Messaging

Zestaw:

mscorlib.dll

Pobiera metodę LogicalCallContext dla bieżącego wywołania metody.

public:
 property System::Runtime::Remoting::Messaging::LogicalCallContext ^ LogicalCallContext { System::Runtime::Remoting::Messaging::LogicalCallContext ^ get(); };

public System.Runtime.Remoting.Messaging.LogicalCallContext LogicalCallContext { [System.Security.SecurityCritical] get; }

[<get: System.Security.SecurityCritical>]
member this.LogicalCallContext : System.Runtime.Remoting.Messaging.LogicalCallContext

Public ReadOnly Property LogicalCallContext As LogicalCallContext

Wartość właściwości

LogicalCallContext

Pobiera metodę LogicalCallContext dla bieżącego wywołania metody.

Atrybuty

SecurityCriticalAttribute

Wyjątki

SecurityException

Bezpośredni obiekt wywołujący wykonuje wywołanie za pośrednictwem odwołania do interfejsu i nie ma uprawnień do infrastruktury.

Przykłady

Poniższy przykładowy kod pokazuje, jak za pomocą LogicalCallContext właściwości określić, czy jakiekolwiek wartości są dołączone do wątku logicznego.

//This sample requires full trust
[PermissionSetAttribute(SecurityAction::Demand, Name = "FullTrust")]
public ref class MyProxy: public RealProxy
{
private:
   String^ stringUri;
   MarshalByRefObject^ targetObject;

public:
   MyProxy( Type^ type )
      : RealProxy( type )
   {
      targetObject = dynamic_cast<MarshalByRefObject^>(Activator::CreateInstance( type ));
      ObjRef^ myObject = RemotingServices::Marshal( targetObject );
      stringUri = myObject->URI;
   }

   MyProxy( Type^ type, MarshalByRefObject^ targetObject )
      : RealProxy( type )
   {
      this->targetObject = targetObject;
   }

   virtual IMessage^ Invoke( IMessage^ message ) override
   {
      message->Properties[ "__Uri" ] = stringUri;
      IMethodMessage^ myMethodMessage = dynamic_cast<IMethodMessage^>(ChannelServices::SyncDispatchMessage( message ));
      Console::WriteLine( "---------IMethodMessage* example-------" );
      Console::WriteLine( "Method name : {0}", myMethodMessage->MethodName );
      Console::WriteLine( "LogicalCallContext has information : {0}", myMethodMessage->LogicalCallContext->HasInfo );
      Console::WriteLine( "Uri : {0}", myMethodMessage->Uri );
      return myMethodMessage;
   }
};

   public class MyProxy : RealProxy
   {

   String stringUri;
   MarshalByRefObject targetObject;

public MyProxy(Type type) : base(type)
{
      targetObject = (MarshalByRefObject)Activator.CreateInstance(type);
      ObjRef myObject = RemotingServices.Marshal(targetObject);
      stringUri = myObject.URI;
   }

   public MyProxy(Type type, MarshalByRefObject targetObject) : base(type)
   {
      this.targetObject = targetObject;
   }

   public override IMessage Invoke(IMessage message)
   {
      message.Properties["__Uri"] = stringUri;
      IMethodMessage myMethodMessage =
         (IMethodMessage)ChannelServices.SyncDispatchMessage(message);

      Console.WriteLine("---------IMethodMessage example-------");
      Console.WriteLine("Method name : " + myMethodMessage.MethodName);
      Console.WriteLine("LogicalCallContext has information : " +
         myMethodMessage.LogicalCallContext.HasInfo);
      Console.WriteLine("Uri : " + myMethodMessage.Uri);

      return myMethodMessage;
   }
}

Public Class MyProxy
   Inherits RealProxy

   Private stringUri As String
   Private targetObject As MarshalByRefObject

   <SecurityPermission(SecurityAction.LinkDemand)> _
   Public Sub New(type As Type)
      MyBase.New(type)
      targetObject = CType(Activator.CreateInstance(type), MarshalByRefObject)
      Dim myObject As ObjRef = RemotingServices.Marshal(targetObject)
      stringUri = myObject.URI
   End Sub

<SecurityPermission(SecurityAction.LinkDemand)> _
   Public Sub New(type As Type, targetObject As MarshalByRefObject)
      MyBase.New(type)
      Me.targetObject = targetObject
   End Sub


<SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags:=SecurityPermissionFlag.Infrastructure)> _
   Public Overrides Function Invoke(message As IMessage) As IMessage
      message.Properties("__Uri") = stringUri
      Dim myMethodMessage As IMethodMessage = _
            CType(ChannelServices.SyncDispatchMessage(message), IMethodMessage)
      Console.WriteLine("---------IMethodMessage example-------")
      Console.WriteLine("Method name : " + myMethodMessage.MethodName)
      Console.WriteLine("LogicalCallContext has information : " + _
            myMethodMessage.LogicalCallContext.HasInfo.ToString())
      Console.WriteLine("Uri : " + myMethodMessage.Uri)
      Return myMethodMessage
   End Function 'Invoke

End Class