Number/Currency to words in c#

 https://www.c-sharpcorner.com/article/convert-numeric-value-into-words-currency-in-c-sharp/

 

Other Solution 

public static string CurrencyToWords(decimal? numbers, Boolean paisaconversion = false)
        {
            var pointindex = numbers.ToString().IndexOf(".");
            var paisaamt = 0;

            int number = Convert.ToInt32(numbers);
            if (pointindex > 0)
            {
                paisaamt = Convert.ToInt32(numbers.ToString().Substring(pointindex + 1, 2));
                number = Convert.ToInt32(numbers.ToString().Substring(0, pointindex));
            }

            if (number == 0) return "Zero";
            if (number == -2147483648) return "Minus Two Hundred and Fourteen Crore Seventy Four Lakh Eighty Three Thousand Six Hundred and Forty Eight";
            int[] num = new int[4];
            int first = 0;
            int u, h, t;
            System.Text.StringBuilder sb = new System.Text.StringBuilder();
            if (number < 0)
            {
                sb.Append("Minus ");
                number = -number;
            }
            string[] words0 = { "", "One ", "Two ", "Three ", "Four ", "Five ", "Six ", "Seven ", "Eight ", "Nine " };
            string[] words1 = { "Ten ", "Eleven ", "Twelve ", "Thirteen ", "Fourteen ", "Fifteen ", "Sixteen ", "Seventeen ", "Eighteen ", "Nineteen " };
            string[] words2 = { "Twenty ", "Thirty ", "Forty ", "Fifty ", "Sixty ", "Seventy ", "Eighty ", "Ninety " };
            string[] words3 = { "Thousand ", "Lakh ", "Crore " };
            num[0] = number % 1000; // units
            num[1] = number / 1000;
            num[2] = number / 100000;
            num[1] = num[1] - 100 * num[2]; // thousands
            num[3] = number / 10000000; // crores
            num[2] = num[2] - 100 * num[3]; // lakhs
            for (int i = 3; i > 0; i--)
            {
                if (num[i] != 0)
                {
                    first = i;
                    break;
                }
            }
            for (int i = first; i >= 0; i--)
            {
                if (num[i] == 0) continue;
                u = num[i] % 10; // ones
                t = num[i] / 10;
                h = num[i] / 100; // hundreds
                t = t - 10 * h; // tens
                if (h > 0) sb.Append(words0[h] + "Hundred ");
                if (u > 0 || t > 0)
                {if (h > 0 || i == 0) sb.Append("and ");
                    if (t == 0)
                        sb.Append(words0[u]);
                    else if (t == 1)
                        sb.Append(words1[u]);
                    else
                        sb.Append(words2[t - 2] + words0[u]);
                }
                if (i != 0) sb.Append(words3[i - 1]);
            }

            if (paisaamt == 0 && paisaconversion == false)
            {
                sb.Append("rupees only");
            }
            else if (paisaamt > 0)
            {
                var paisatext = CurrencyToWords(paisaamt, true);
                sb.AppendFormat("rupees {0} paise only", paisatext);
            }
            return sb.ToString().TrimEnd().ToUpper();
        }

Sample Input

CurrencyToWords(200.52, true)

Sample Output

TWO HUNDRED RUPEES AND FIFTY TWO PAISE ONLY