Duplex WCF service

Question

I created a simple WCF service that worked just fine. I tried later to make it a duplex service. I created the duplex contract, changed the binding to wsDualHttpBinding and pulish the WSDL. However when I try to do the last step on the client side I face some trouble. Here is what I did on the client side:

    static void Main(string[] args)
    {
        InstanceContext context = new InstanceContext(new CalcCallbackHandler());
        CalcClient proxy = new CalcClient(context);
    }

The problem is that CalcClient ctor can't receive InstanceContext. I can't understand how It's possible beacuse all the example I've seen on the web use this method to create duplex server. Any suggestions?

Can you show your Service contract and callback duplex contract? — vibhu, Jul 20 '13 at 13:47

score 2 · Answer 1 · answered Jul 20 '13 at 14:25

2

On the client side you will need to setup/host the call back object and expose the callback endpoint.

answered Jul 20 '13 at 14:25

otaku

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Duplex WCF service

1 Answers1