Does System.Array Really Implement ICollection?

Question

According to MSDN docs, System.Array implements ICollection, yet System.Array does not provide a Count property (of course you can always use the LINQ Count() extension method, but there is no property with this name). How can this be? Isn't Count required?

Answer 1

It's explicitly implemented like so:

int ICollection.Count
{
    get
    {
        return Length;
    }
}

You can read more about explicit interface implementation on MSDN.