#MEF ImportMany on interfaces

gistfile1.cs

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            var cat = new AssemblyCatalog(typeof(Program).Assembly);
            var container = new CompositionContainer(cat);

            var someObject = container.GetExportedValue<SomeClass>();
            someObject.Init();

            Console.ReadLine();
        }
    }

    [Export]
    public class SomeClass
    {
        private readonly IModule[] _modules;

        [ImportingConstructor]
        public SomeClass([ImportMany(typeof(IModule))] IModule[] modules)
        {
            _modules = modules;
        }

        public void Init()
        {
            _modules.ToList().ForEach(m => Console.WriteLine(m.Name));
        }
    }

    [InheritedExport]
    public interface IModule
    {
        string Name { get; }
    }

    public class ModuleA : IModule
    {
        public string Name
        {
            get { return "ModuleA"; }
        }
    }
    
    public class ModuleB : IModule
    {
        public string Name
        {
            get { return "ModuleB"; }
        }
    }
}