Using custom DataContractResolver in WCF, to transport inheritance trees involving generics
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Published on 2010-03-13T11:21:21Z
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I've got a WCF service, in which there are operations which accept a non-generic base class as parameter.
[DataContract] class Foo { ... }
This base class is in turn inherited, by such generics classes as
[DataContract] class Bar : Foo { ... }
To get this to work, I'd previously have to register KnownTypes for the Foo class, and have these include all possible variations of Bar (such as Bar, Bar and even Bar>).
With the DataContractResolver in .NET 4, however, I should be able to build a resolver which properly stores (and restores) the classes.
My questions:
Are DataContractResolvers typically only used on the service side, and not by the client? If so, how would that be useful in this scenario?
Am I wrong to write a DataContractResolver which serializes the fully qualified type name of a generic type, such as Bar
1[List1[string, mscorlib], mscorlib] ? Couldn't the same DataContractResolver on the client side restore these types?
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