CapDemo.DA.DatabaseAccess.MaxID C# (CSharp) Метод

        public int MaxID(string query)
        {
            try
            {
                con = new SQLiteConnection(connection);
                cmd = new SQLiteCommand(query, con);
                con.Open();
                object val = cmd.ExecuteScalar();
                int max = int.Parse(val.ToString());
                return max;
            }
            catch (Exception)
            {

                    //MessageBox.Show("Error\n" + ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return -1;
            }
        }