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Questions tagged [wcf-callbacks]

71 questions
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Why is my WCF callback timing out?

I have the following service and callback contracts (abridged): Service Contract: [ServiceContract(CallbackContract = typeof(ISchedulerServiceCallback))] public interface ISchedulerService { [OperationContract] void Stop(); …
ProfK
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WCF Callbacks not working for multiple clients

I've managed to create a WCF service with callbacks. The callbacks are working as expected, but only for one client. If I start another client, the first one stops receiving callbacks, but the second one receives them twice and so on. I've tried…
Stefan Schmid
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CommunicationException; Store App -> .NET 4.5 WCF Duplex TCP Service; Instant Timeout

I am having trouble getting a Windows Store App to make calls into a WCF service. The service is a Duplex service using a netTCP binding. The first time the client (A Windows 8.1 Store Application) uses the service, it throws an exception: An…
PatrickV
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Only one callback at a time - WCF limitation?

I stuck on this one for about two weeks now - So could someone tell me, is there a limitation from WCF that only one callback at a time can be handled by a callback object? I have tried just about anything I can find in trying to resolve this issue…
user2434400
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How can the WCF RoutingService route callback messages from two different WCF servers with the same contract to a client?

My WCF servers work like this: You subscribe to them by calling a service method, say Subscribe(). They send you results back on a callback channel, say MessageReceived(string message). My issue right now is that I am only getting callback messages…
Alexandru
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Receiving a WCF callback service from a ASP.NET web app hosted in IIS

I have been working on this issue for a couple of days now. The problem has 3 working parts. I have a ASP.NET site , WCF IIS hosted service and WPF xbap app. What I'm trying to do is pass variables from the ASP.NET site to the WPF xbap app. So I…
Scott
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Display Messages after getting response from WCF

I am building a WCF Application for Push notification where user have to first subscribe himself and after subscribe the client get response from WCF. i use wsDualHttpBinding as binding and callback in WCF. I don't want to call recursive function…
ankit Gupta
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WCF Service for two type of clients, only one with callback

I want to create a WCF service for two types of clients 1- for windows phone 7 2- for windows (wpf) and I want to support callback for (wpf client) only, since i dont' need it for windows phone 7 (and I think it doesnt support it) I have no problem…
Bayar
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WCF interoperability with callback contract

I need to implement a service that supports duplex communication with non WCF clients (python, Java, Ruby, etc.). However, none of the default bindings seem to support such a scenario (wsDualHttpBinding not really being interop:…
Till Hoffmann
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PerSession WCF Service with Callback for Silverlight client

We would like to develop WCF service for SL clients, which should support session management (PerSession) and callbacks. The WCF service would be hosted as a Windows service. What would be best WCF binding choice (wsdual, pollingDuplex, any other)?…
Jayanta Dey
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Multi-threading synchronization using wide scope lock with WCF callbacks

What I want to do is this-- I want to make a proxy call to a service and receive data on a separate thread through an asynchronous callback...the tricky part is that I want to make the foreground thread sleep until all of the data has been…
Bil Hooper
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how to change service callback timeout dynamicly

I need to set my service's callback timeouts but i cannot find where are they defined. this needs to be hardcoded.
Nahum
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Consuming a WCF Duplex service inside of a RESTful service

Suppose I wanted to create a WCF WebHTTP service ("ServiceREST") that had a reference to a duplex service ("ServiceDuplex"). ServiceDuplex requires implementations of certain callback members to deliver data that is requested from it. For example,…
Thelonias
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How can I callback the client and expose a new Channel with instance context

I'm making a WCF service with netTcpBinding which has a main lobby with multiple chatrooms which the clients can enter. The Lobby class implements ILobby as the service contract. When a client wishes to enter a room I want to callback the client…
Freddy Flares
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WCF callback won't pass derived class

CLIENT SIDE my client got the following callback contract: [ServiceContract] interface IEvent { [OperationContract(IsOneWay = true)] void OnEvent(string serverName, string changeType, List myObjects); } and got a class…
Nahum
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