System.Collections.HashMap.KeysCollection.CopyTo C# (CSharp) Method

            public virtual void CopyTo(Array array, int arrayIndex) {
                if (m.hasNullKey) {
                    keys.CopyTo(array, arrayIndex + 1);
#if !dotNETMF
                    array.SetValue(null, arrayIndex);
#else
                    ((IList)array)[arrayIndex] = null;
#endif
                }
                else {
                    keys.CopyTo(array, arrayIndex);
                }
            }
            public virtual IEnumerator GetEnumerator() {