Taimer.User.UsersToList C# (CSharp) Method

        public static List<User> UsersToList(DataSet data)
        {
            if (data != null)
            {
                List<User> list = new List<User>();
                string dni, nom, email, pass, tit = "",img="",frs = "";
                int curso = 0, codH = 0;
                DataRowCollection rows = data.Tables[0].Rows;

                for (int i = 0; i < rows.Count; i++)
                {
                    dni = rows[i].ItemArray[0].ToString();
                    nom = rows[i].ItemArray[1].ToString();
                    email = rows[i].ItemArray[2].ToString();
                    pass = rows[i].ItemArray[3].ToString();

                    if (rows[i].ItemArray[4].ToString() != "")
                        curso = (int)rows[i].ItemArray[4];

                    if (rows[i].ItemArray[5].ToString() != "")
                        tit = rows[i].ItemArray[5].ToString();

                    if (rows[i].ItemArray[6].ToString() != "")
                        codH = (int)rows[i].ItemArray[6];

                    img = rows[i].ItemArray[7].ToString();

                    frs = rows[i].ItemArray[8].ToString();

                    User user = new User(nom, dni, email, pass, curso, tit, codH, frs);
                    user.SetDatos();
                    list.Add(user);
                }
                return list;
            }
            return null;
        }