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PODomain Service vs WCF Service?
 

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    <p>Im slowly delving into Silverlight and after a good while trying I am finally able to return my own Custom Object from my web to my silverlight client, use a Siverlight enabled WCF service.</p> <p>Now, im a little at a loss between the differences of a Domain Service, and a WCF Service.</p> <p>Ive worked through the tutorials where a Domain Service is tied to a data context then bound to siliverlight controls. Great :) However, where i hit a rock was trying to return anything bar IQuerryable; as String, my own simple type etc.</p> <p>I found a few tutorials such as <a href="http://mark.mymonster.nl/2009/04/05/silverlight-3-and-ria-services-the-advanced-things/" rel="noreferrer">this</a> showing to mark a function with the [ServiceContract] annotation and to have a [Key] within your simple class. This didnt work, [ServiceContract] was not resolvable, and i later found a guide saying to use [Invoke]. I then hit issues of not been able to load the function and get a result, i basically go to here</p> <pre><code>[Invoke] public string HelloWorld(string name) { return string.Format("Hello {0}.", name); } var helloWorld = new HelloWorldDomainContext(); //helloWorld.HelloWorldCompleted += new EventHandler&lt;InvokeEventArgs&lt;string&gt;&gt;(HelloWorldHelloWorldCompleted); //helloWorld.HelloWorld("Mark Monster"); </code></pre> <p>Anyway, so I then discovered silverlight enabled WCF services, and am able to return my own custom objects and call this fine.</p> <p>tl;dr - Are Domain Services only for use when binding to Silverlight controls? Ie its kind of a direct one way binding and is called as and when is needed, and i do all Linq related sorting / filtering / selecting on the server? </p> <p>And lets say I want to return an xmlString, then i use a WCF service? Am i right to be using a mix of WCF services and Domain Services in my application?</p> <p>Sorry if the above is a bit confusing! Just trying to get to grips with this all coming from ASP.NET / Flex</p> <p>Thanks muchly.</p>
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