I remember reading somewhere that tcp binding is required for passing complex objects (LLBLGEN EntityCollection) over the wire, that the HTTP protocol does not support complex objects. Certainly your posted example uses tcp binding. It's my understanding that WCF now does the plumbing for a DataContract and provides the ability to pass these objects using tcp binding.
Now I cannot find that post. Is that the case?
I'm having unrelated local trouble getting the Net. Tcp Listener to start. On my machine it is dependent upon the Net. Tcp Port Sharing Service. I have set the Port Sharing Service to Automatic and it starts fine. Even though it is started and running, the Tcp Listener will not start, stating that a dependent service does not exist or is marked for deletion.
I have checked the dependencies for both and the Port Sharing Service has no dependencies and the Listener has only the Port Sharing Service as a dependency. Even though the Port Sharing Service is up and running, I still get the error when trying to start the Listener.
