WFA_psychometric_chart.Form1_main.checkForDataInSqlite C# (CSharp) Method

        public bool checkForDataInSqlite()
        {
            string dir = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
            string databasePath1 = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
            string databaseFile1 = databasePath1 + @"\db_psychrometric_project.s3db";
            string connString = @"Data Source=" + databaseFile1 + ";Version=3;";
            //MessageBox.Show("Path = " + databaseFile1);
            bool returnValue = false;
            string id = "";
            using (SQLiteConnection connection = new SQLiteConnection(connString))
            {
                connection.Open();
                SQLiteDataReader reader = null;
                string queryString = "SELECT * from tbl_building_location WHERE selection=1";
                SQLiteCommand command = new SQLiteCommand(queryString, connection);
                //command.Parameters.AddWithValue("@index", index);
                //command.Parameters.Add("@index",DbType.Int32).Value= index_selected;
                //command.Parameters.AddWithValue("@index", index_selected);

                reader = command.ExecuteReader();
                while (reader.Read())
                {
                    //ListboxItems.Add(reader[1].ToString()+","+reader[2].ToString());
                    id = reader["ID"].ToString();
                }
            }
            if (id != "")
            {
                returnValue = true;
            }
            else
            {
                returnValue = false;
            }
            //--This will be either true or false based on the check value..
            return returnValue;
        }