Can I force svcutil.exe to generate data contracts for a WCF service?

Question

I would like to force svcutil to generate all data contracts in an assembly that is used by WCF, regardless of whether or not a type is referenced by a given operation contract.

[DataContract]
public class Foo { }

[DataContract]
public class Bar : Foo { }

[ServiceContract]
public interface IService
{
    [OperationContract]
    void Get(Foo foo);
}

Given this setup I cannot get svcutil to generate a version of Bar as there are no operation contracts that currently reference it. Is there a way to force svcutil to generate the data contract for Bar?

Answer 1

Add a KnownType attribute to the Foo class

[KnownType(typeof(Bar))]
[DataContract]
public class Foo { }