setting pos

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace WindowsFormsApplication1
{
    class settings
    {
        private static string not_tochange = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=";
        //C:\Users\Priem-Ali\Documents\POS.mdb
        public static string connection_we_got_from_sttings_form = System.IO.Directory.GetCurrentDirectory() + @"\POS.mdb";
        public static string connection = not_tochange + connection_we_got_from_sttings_form;


        // Database Getter

        public string database_connection
        {
            get { return connection_we_got_from_sttings_form; }
            set
            {
                connection_we_got_from_sttings_form = value;
                connection = not_tochange + connection_we_got_from_sttings_form;

            }
        }



        public static string ConvertNumbertoWords(long number)
        {
            if (number == 0) return "";
            if (number < 0) return "minus " + ConvertNumbertoWords(Math.Abs(number));
            string words = "";
            if ((number / 1000000) > 0)
            {
                words += ConvertNumbertoWords(number / 100000) + " LAKES ";
                number %= 1000000;
            }
            if ((number / 1000) > 0)
            {
                words += ConvertNumbertoWords(number / 1000) + " THOUSAND ";
                number %= 1000;
            }
            if ((number / 100) > 0)
            {
                words += ConvertNumbertoWords(number / 100) + " HUNDRED ";
                number %= 100;
            }
            //if ((number / 10) > 0)
            //{
            // words += ConvertNumbertoWords(number / 10) + " RUPEES ";
            // number %= 10;
            //}
            if (number > 0)
            {
                if (words != "") words += "AND ";
                var unitsMap = new[]
        {
            "ZERO", "ONE", "TWO", "THREE", "FOUR", "FIVE", "SIX", "SEVEN", "EIGHT", "NINE", "TEN", "ELEVEN", "TWELVE", "THIRTEEN", "FOURTEEN", "FIFTEEN", "SIXTEEN", "SEVENTEEN", "EIGHTEEN", "NINETEEN"
        };
                var tensMap = new[]
        {
            "ZERO", "TEN", "TWENTY", "THIRTY", "FORTY", "FIFTY", "SIXTY", "SEVENTY", "EIGHTY", "NINETY"
        };
                if (number < 20) words += unitsMap[number];
                else
                {
                    words += tensMap[number / 10];
                    if ((number % 10) > 0) words += " " + unitsMap[number % 10];
                }
            }
            return words;
        }

    }
}