Generic Service Interface - wcf

Question

I have a Generic Service Interface:
[ServiceContract]
public interface IService<T> where T : Class1
{
[OperationContract]
void DoWork(T class1);
}
Then I have a Concrete Service that inherits from that:
public class Service : IService<Class1>
{
public void DoWork(Class1 class1)
{
}
}
Everything works fine until I add a webHttpEndpoint to expose a JSON WS:
<service name="Service">
<endpoint
address=""
binding="webHttpBinding"
behaviorConfiguration="webHttpBehavior"
contract="IService" />
</service>
<behavior name="webHttpBehavior">
<enableWebScript />
</behavior>
In fact, I receive this error:
The contract name 'IService' could not
be found in the list of contracts
implemented by the service 'Service'.
That's beacuse of the generic definition of the interface.
Any solution?

Answer 1

In my opinion (and based on what you said), the interface does not need to be generic. The caller just need to know that there is a DoWork operation.
So basically, change the concrete class to be generic instead of the interface.
public class Service<T> : IService where T : Class1
{
public void DoWork()
{
}
}
EDIT after clarifying the question: You need to provide the generic parameter in the config file as well:
contract="YourAssembly.IService`1[[YourAssembly.Class1, YourAssembly, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]]"
Here is a similar question: Inheriting from a generic contract in WCF

Answer 2

You must correctly write the type name of your contract into configuration. IService is not the name of IService<Class1>!!!
The configuration should look like:
<service name="Service">
<endpoint
address=""
binding="webHttpBinding"
behaviorConfiguration="webHttpBehavior"
contract="IService`1[Class1]" />
</service>
<behavior name="webHttpBehavior">
<enableWebScript />
</behavior>
Be aware that if your contract or service lives in any namespace, namespaces should be included in configuration.
Or in case of full names needed:
<service name="Namespace.Service, AssemblyName">
<endpoint
address=""
binding="webHttpBinding"
behaviorConfiguration="webHttpBehavior"
contract="Namespace.IService`1[[Namespace.Class1, AssemblyName]], AssemblyName" />
</service>
<behavior name="webHttpBehavior">
<enableWebScript />
</behavior>

Answer 3

Where is your Class1.....Instead of specifying any specific class make it a reference type using class
Try something this...
[ServiceContract]public interface IService<T> where T : class
{
[OperationContract]
void DoWork();
}