System.Xml.XmlNodeListEnumerator.MoveNext C# (CSharp) Метод

        public bool MoveNext() {
            index++;
            int count = list.ReadUntil(index + 1);   // read past for delete-node case
            if (count - 1 < index) {
                return false;
            }
            valid = (list[index] != null);
            return valid;
        }