public static List <cls_rooms> GetRooms_records()
        {
            List <cls_rooms> rooms = new List <cls_rooms>();

            String query = "SELECT * FROM rooms";

            MySqlCommand cmd = new MySqlCommand(query, cls_connection.Connection);


            cls_connection.Connection.Open();

            MySqlDataReader reader = cmd.ExecuteReader();

            while (reader.Read())
            {
                int    id   = (int)reader["ID_r"];
                String name = reader["name"].ToString();
                String des  = reader["description"].ToString();
                float  rate = (float)reader["rate"];
                String s    = reader["status"].ToString();

                cls_rooms u = new cls_rooms(id, name, des, rate, s);

                rooms.Add(u);
            }

            reader.Close();

            cls_connection.Connection.Close();

            return(rooms);
        }
        public static cls_rooms Insert(String n, string d, string r, string s)
        {
            String query = string.Format("INSERT INTO rooms(name,description, rate,status) VALUES ('{0}', '{1}','{2}','{3}')", n, d, r, s);

            MySqlCommand cmd = new MySqlCommand(query, cls_connection.Connection);

            cls_connection.Connection.Open();

            cmd.ExecuteNonQuery();
            int   id = (int)cmd.LastInsertedId;
            float ra = float.Parse(r);

            cls_rooms user = new cls_rooms(id, n, d, ra, s);

            cls_connection.Connection.Close();

            return(user);
        }