IMethodMessage Interface

Defines the method message interface.

Namespace:  System.Runtime.Remoting.Messaging
Assembly:  mscorlib (in mscorlib.dll)

[ComVisibleAttribute(true)]
public interface IMethodMessage : IMessage

A method message is used to send information to and from remote methods. For example, messages used for remote method calls implement the IMethodMessage interface.

The following example code shows a custom proxy that overrides RealProxy.Invoke in order to write the message information to the console and return immediately without making a remote call.

[PermissionSet(SecurityAction.Demand, Name="FullTrust")]
public class MyProxyClass : RealProxy
{
   private Object  myObjectInstance  = null;
   private Type    myType      = null;

   public MyProxyClass(Type argType) : base(argType)
   {
      myType = argType;
      myObjectInstance = Activator.CreateInstance(argType);
   }

   // Overriding the Invoke method of RealProxy. 
   public override IMessage Invoke(IMessage message)
   {
      IMethodMessage myMethodMessage = (IMethodMessage)message;

      Console.WriteLine("**** Begin Invoke ****");
      Console.WriteLine("\tType is : " + myType);
      Console.WriteLine("\tMethod name : " +  myMethodMessage.MethodName);

      for (int i=0; i < myMethodMessage.ArgCount; i++)
      {
         Console.WriteLine("\tArgName is : " + myMethodMessage.GetArgName(i));
         Console.WriteLine("\tArgValue is: " + myMethodMessage.GetArg(i));
      }

      if(myMethodMessage.HasVarArgs)
          Console.WriteLine("\t The method have variable arguments!!");
      else
          Console.WriteLine("\t The method does not have variable arguments!!");

      // Dispatch the method call to the real object.
      Object returnValue = myType.InvokeMember( myMethodMessage.MethodName, BindingFlags.InvokeMethod, null,
                                           myObjectInstance, myMethodMessage.Args );
      Console.WriteLine("**** End Invoke ****");

      // Build the return message to pass back to the transparent proxy.
      ReturnMessage myReturnMessage = new ReturnMessage( returnValue, null, 0, null,
          (IMethodCallMessage)message );
      return myReturnMessage;
   }
}
public __gc class MyProxyClass : public RealProxy 
{
private:
	Object* myObjectInstance;
private:
	Type* myType;

public:
	MyProxyClass(Type* argType) : RealProxy(argType) 
	{
		myType = argType;
		myObjectInstance = Activator::CreateInstance(argType);
	}

	// Overriding the Invoke method of RealProxy.
public:
	IMessage* Invoke(IMessage* message) 
	{
		IMethodMessage* myMethodMessage = dynamic_cast<IMethodMessage*>(message);

		Console::WriteLine(S"**** Begin Invoke ****");
		Console::WriteLine(S"\tType is : {0}", myType);
		Console::WriteLine(S"\tMethod name : {0}", myMethodMessage->MethodName);

		for (int i=0; i < myMethodMessage->ArgCount; i++) 
		{
			Console::WriteLine(S"\tArgName is : {0}", myMethodMessage->GetArgName(i));
			Console::WriteLine(S"\tArgValue is: {0}", myMethodMessage->GetArg(i));
		}

		if (myMethodMessage->HasVarArgs)
			Console::WriteLine(S"\t The method have variable arguments!!");
		else
			Console::WriteLine(S"\t The method does not have variable arguments!!");

		// Dispatch the method call to the real Object*.
		Object* returnValue = myType->InvokeMember(myMethodMessage->MethodName, BindingFlags::InvokeMethod, 0,
			myObjectInstance, myMethodMessage->Args);
		Console::WriteLine(S"**** End Invoke ****");

		// Build the return message to pass back to the transparent proxy.
		ReturnMessage* myReturnMessage = new ReturnMessage(returnValue, 0, 0, 0,
			dynamic_cast<IMethodCallMessage*>(message));
		return myReturnMessage;
	}
};

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
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