Question

I’m using MEF as an IoC container.

If the requesting class is in the Foo.UI.* namespace, I want ILogger to resolve to ClientLogger, otherwise it should resolve to Logger. Can I do this?

Answer 1

Maybe with such a workaround, using named exports ?

[Export("clientLogger", typeof(ILogger))]
public class ClientLogger : ILogger {}

[Export("logger", typeof(ILogger))]
public class logger: ILogger {}

And the requesting type in the Foo.UI.* decorate like this

[ImportingConstructor]
public MyService([Import("clientLogger", typeof(ILogger))]ILogger logger)

I know that it’s not the best solution but maybe it would work.