Warning při použití COM interface.

Question

Při kompilaci projektu obdržím varování

Code Block

Type library exporter warning processing 'HPTronic.Advertise.BannerCollection, AdvertiseManager'. Warning: Type library exporter encountered a type that derives from a generic class and is not marked as [ClassInterface(ClassInterfaceType.None)]. Class interfaces cannot be exposed for such types. Consider marking the type with [ClassInterface(ClassInterfaceType.None)] and exposing an explicit interface as the default interface to COM using the ComDefaultInterface attribute.

, i když ve zdrojovém kódu mám použitý atribut ClassInterface:

Code Block

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;

namespace HPTronic.Advertise
{
    [ClassInterface(ClassInterfaceType.None)]
    [ComVisible(true)]
    [ComDefaultInterface(typeof(IBannerCollectionInterface))]
    public class BannerCollection : List<BannerItem>, IBannerCollectionInterface
    {
        public BannerCollection()
        {}
    }

    public interface IBannerCollectionInterface
    {
        void Add(BannerItem item);
        void Clear();

    }  
}

Jedná se o projekt v VS 2005/.NET 2.0

Můžete mi prosím někdo poradit, kde dělám chybu?