NFe.Components.FTP.ListFiles C# (CSharp) Метод

        public ArrayList ListFiles()
        {
            ArrayList list = new ArrayList();

            foreach (string f in List())
            {
                //FILIPE MADUREIRA
                //In Windows servers it is identified by <DIR>
                if ((f.Length > 0))
                {
                    if ((f[0] != 'd') && (f.ToUpper().IndexOf("<DIR>") < 0))
                        list.Add(f);
                }
            }

            return list;
        }
        /// <summary>