.NET 1.x remoting hell!

Bob Stanneveld

Hello, I've got a very big problem with the .NET remoting. I've developed a synchronization library using .NET 2.0 that uses classes derived from MarshalByRefObject. These classes have public events which remote objects can subscribe to. Under the 2.0 framework, everything works like a charm. Now I have to port the library to .NET 1.x since my teachers want to be able to test and compile the code by themselves. I though that this would be a task of a few minutes. I guessed wrong. The runtime refuses to serialize the delegates. I've read something about RemotingSurrogateSelector, but I can't find a thorough explanation about how the class should be used to handle this type of serialization. Does anybody know how I can subscribe to a remote event? Source example:

// The delegate
public delegate void MyDelegate();
// The remote (server) object
class RemoteObject : System.MarshalByRefObject
{
// code...

public event MyDelegate EvMyEvent;

}

// The client object
class MyClient
{
// code...

private void MyDelegateFunction()
{
}

public MyClient()
{
    RemoteObject oRO = null;
    // Get the remote object
    oRO.EvMyEvent += new MyDelegate(MyDelegateFunction); // Exception:
    /\*
         An unhandled exception of
         type 'System.Runtime.Serialization.SerializationException' occurred in 
         mscorlib.dll

         Additional information: Serialization will not deserialize delegates 
         to non-public methods.
    \*/
}

}

Behind every great black man... ... is the police. - Conspiracy brother Blog[^]

S Senthil Kumar

I don't know why this happens either, but making the delegate function (MyDelegateFunction) public solves the problem. Ugly, I know, but it works. I guess this is a bug and has been corrected in .NET 2.0 Regards Senthil _____________________________ My Blog | My Articles | WinMacro

Bob Stanneveld

Hi, Thanks for the reply. It's ugly indeed. It's that I'm not a strict OO purist... I hope that everybody moves to the .NET 2.0 framework soon.. Behind every great black man... ... is the police. - Conspiracy brother Blog[^]