Given a generic ICollection<T> interface, wrap a non-generic (untyped) ICollection interface around it. The non-generic interface will contain the same objects as the underlying generic collection, but can be used in places that require a non-generic interface. This method is useful when interfacing generic interfaces with older code that uses non-generic interfaces.

Given a generic IList<T> interface, wrap a non-generic (untyped) IList interface around it. The non-generic interface will contain the same objects as the underlying generic list, but can be used in places that require a non-generic interface. This method is useful when interfacing generic interfaces with older code that uses non-generic interfaces.