Remoting Marshal and Events

[Borvik]

I'm attempting to build a Windows service from which I can manage it through a GUI on another computer using Remoting.

I have an Interface that is referenced both by the service, and the managing program.

In the service the interface is implemented in a class that inherits the MarshalByRefObject

Public Class clsSharedObject
    Inherits MarshalByRefObject
    Implements iMySharedObject

The service starts listening via the following:

Dim formatter As New BinaryServerFormatterSinkProvider
formatter.TypeFilterLevel = Runtime.Serialization.Formatters.TypeFilterLevel.Full

channel = New TcpServerChannel("RemChannelName", port, formatter)
ChannelServices.RegisterChannel(channel, False)
RemotingConfiguration.CustomErrorsMode = CustomErrorsModes.Off
RemotingServices.Marshal(mgr, "MySharedObject")

In the client I am doing this to connect:

Dim formatter As New BinaryClientFormatterSinkProvider()
Dim channel As New TcpClientChannel("RemChannelName", formatter)
ChannelServices.RegisterChannel(channel, False)
manager = CType(Activator.GetObject(GetType(iMySharedObject), "tcp://192.168.102.3:9000/MySharedObject"), iMySharedObject)

AddHandler manager.ServiceStateChanged, AddressOf manager_ServiceStateChanged

The ServiceStateChanged event is defined in the interface - and the AddHandler line is also where I am having difficulty.

At that line I am getting the error like "Could not load file or assembly {0} or one of its dependencies. The system cannot find the file specified."

Most likely because the server service doesn't have access to the managing gui requesting the addhandler.

Any ideas on how I can get the client to subscribe to the events?

Thanks.

 

[Borvik]

Aha - I think I found the answer - so far I haven't seen it working though.

The answer that may work is using a Wrapper class is available to both and is MarshalByRefObject. (example found here:

http://www.codeproject.com/KB/IP/RemotingEvent.aspx

- though it is in C#).