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Editorial Team
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Asked: 2026-05-12T09:42:26+00:00

In WCF land, you can specify a Namespace prefix for anything that has a

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In WCF land, you can specify a Namespace prefix for anything that has a [DataContract] like so:

[DataContract(Namespace="MyApp")] public class whatever...

However if you wanted to apply a common namespace to ALL data contracts assembly-wide, you can use the ContractNamespaceAttribute:

/* in AssemblyInfo.cs */
[assembly: ContractNamespace("MyApp", ClrNamespace = "MyApp")]

/* in whatever.cs */
[DataContract] public class whatever...

Thats great, works fine. Now over on the ServiceContract side, I can do the same Namespace setup on the service interface:

[ServiceContract(Namespace="MyApp")] public interface whateverService...

But is there something comparable to [assembly: ContractNamespace] that can be used to set the Namespace for all [ServiceContract]s? I’d really like to avoid having to set it manually for however many services, its nice having it in 1 place for the data contracts.
Since there is an assembly level namespace attribute for the data contracts, i’d hope there is one for the service contracts too…

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1 Answer

  1. Editorial Team

    No, you cannot – you have to be very explicit in WCF and you have to explicitly set things like namespaces on each and every ServiceContract. I would probably even do it on each and every DataContract as well – just to be clear about what I am doing.

    It’s a good thing, though! Being explicit also makes your intentions clear – trust me, in a complex system, that helps !

    Marc

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