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Hi,<br />
<br />
I would like to know if it's possible to use polymorphism in DataContract classes for a WCF service.<br />
<br />
lets say i have a method GetAll<br />

<pre><code id="code-10-27414215-1">[OperationContract]
IEnumerable&lt;BasicDTO&gt; GetAll();</code></pre>
in my service. This method returns a collection of BasicDTO. This DTO has a code and a name properties.<br />
<br />
Also I have several classes extending BasicDTO. Lets call one ComplexDTO a class that also has 2 more properties.(creatonDate and creationUser). Both properties with the [DataMember] attribute.<br />
<br />
Is it possible to return a IEnumerable&lt;ComplexDTO&gt; in the GetAll Implementation? Will the extra properties of ComplexDTO arrive to the client?<br />
<br />
Thank You.
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Hi,

I would like to know if it's possible to use polymorphism in DataContract classes for a WCF service.

lets say i have a method GetAll
(CODE)
in my service. This method returns a collection of BasicDTO. This DTO has a code and a name properties.

Also I have several classes extending BasicDTO. Lets call one ComplexDTO a class that also has 2 more properties.(creatonDate and creationUser). Both properties with the [DataMember] attribute.

Is it possible to return a IEnumerable<ComplexDTO> in the GetAll Implementation? Will the extra properties of ComplexDTO arrive to the client?

Thank You.

Polymorphism in WCF DataContracts

Windows Communication Foundation (WCF) is a tool used to implement and deploy a service-oriented architecture (SOA) to support distributed computing where services have remote consumers. It features a runtime and a set of APIs in the .NET Framework for building connected, service-oriented applications. Services typically have a WSDL interface (Web Services Description Language) that any WCF client can use to consume the service, regardless of which platform the service is hosted on. WCF implements many advanced Web services (WS) standards such as WS-Addressing, WS-ReliableMessaging, WS-Security, RSS Syndication Services, WS-Discovery, routing and better support for REST services.

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).