Here is a C# 2.0 version (it can easily be converted to C# 1.0 by removing the static attribute on the class and adding a private default constructor):
using System;
namespace Utility
{
/// <summary>
/// The CurrencyToEnglish class converts a currency value to an english representation.
/// </summary>
public static class CurrencyToEnglish
{
/*
* The original class was written in Managed C++ and found on
* http://www.thecodeproject.com/useritems/Convert_Currency_to_Words.asp
*/
private static int SearchStr(string sStr, string cStr)
{
return sStr.IndexOf(cStr);
}
private static string Left(string numStr, int index)
{
return numStr.Substring(0, index);
}
private static string Right(string numStr, int index)
{
if(numStr.Length < index)
index = numStr.Length;
return numStr.Substring(numStr.Length - index);
}
private static string Mid(string numStr, int start, int length)
{
return numStr.Substring(start, length);
}
private static string ConvertHundreds(string strNum)
{
string result = "";
if (System.Convert.ToDecimal(strNum) == 0)
return "";
strNum = Right(string.Concat("000", strNum), 3);
if (string.Compare(Left(strNum,1), "0") != 0)
{
result = string.Concat(ConvertDigit(Left(strNum, 1)), " Hundred ");
}
if (string.Compare(Mid(strNum, 1, 1), "0") !=0)
{
result += ConvertTens(Mid(strNum, 1, 2));
}
else
{
result += ConvertDigit(Mid(strNum, 2, 1));
}
return result;
}
private static string ConvertTens(string strTens)
{
string sTens = "";
if (System.Convert.ToInt16(Left(strTens, 1)) == 1)
{
int nTens = System.Convert.ToInt16(strTens);
switch (nTens)
{
case 10: sTens = "Ten"; break;
case 11: sTens = "Eleven"; break;
case 12: sTens = "Twelve"; break;
case 13: sTens = "Thirteen"; break;
case 14: sTens = "Fourteen"; break;
case 15: sTens = "Fifteen"; break;
case 16: sTens = "Sixteen"; break;
case 17: sTens = "Seventeen"; break;
case 18: sTens = "Eighteen"; break;
case 19: sTens = "Nineteen"; break;
}
}
else
{
switch (System.Convert.ToInt16(Left(strTens, 1)))
{
case 2: sTens = "Twenty "; break;
case 3: sTens = "Thirty "; break;
case 4: sTens = "Fourty "; break;
case 5: sTens = "Fifty "; break;
case 6: sTens = "Sixty "; break;
case 7: sTens = "Seventy "; break;
case 8: sTens = "Eighty "; break;
case 9: sTens = "Ninety "; break;
}
sTens = string.Concat(sTens, ConvertDigit(Right(strTens, 1)));
}
return sTens;
}
private static string ConvertDigit(string strDigit)
{
string sDigit;
int nDigit = System.Convert.ToInt16(strDigit);
switch (nDigit)
{
case 1: sDigit = "One"; break;
case 2: sDigit = "Two"; break;
case 3: sDigit = "Three"; break;
case 4: sDigit = "Four"; break;
case 5: sDigit = "Five"; break;
case 6: sDigit = "Six"; break;
case 7: sDigit = "Seven"; break;
case 8: sDigit = "Eight"; break;
case 9: sDigit = "Nine"; break;
default: sDigit = ""; break;
}
return sDigit;
}
/// <summary>
/// This function will convert a currency to its word representation.
/// </summary>
/// <param name="number">Source currency amount.</param>
/// <param name="capitalize">Capitalizes the first word in the string.</param>
/// <param name="includeDollarVerbiage">If true outputs "X dollars and Y cents".</param>
/// <param name="allCaps">Converts the string to UPPER case. Takes precedence over <paramref name="capitalize" />.</param>
/// <returns>The amount in English.</returns>
public static string ConvertCurrencyToEnglish(decimal amount, bool capitalize, bool includeDollarVerbiage, bool allCaps)
{
string temp = "";
string dollars = "";
string cents = "";
int count = 1;
int decimalPlace;
string number = amount.ToString();
decimalPlace = SearchStr(number, ".");
if (decimalPlace > 0 && number.Length == decimalPlace + 1)
number = Left(number, decimalPlace);
if (decimalPlace > 0 && number.Length > decimalPlace + 1)
{
temp = Left(string.Concat(Mid(number, decimalPlace + 1, number.Length - (decimalPlace + 1)), "00"), 2);
cents = ConvertTens(temp);
number = Left(number, decimalPlace);
}
string[] place = {"", "", " Thousand ", " Million ", " Billion ", " Trillion ", " Quadrillion ", " Quintillion ", " Sextillion "};
while (number != "")
{
temp = ConvertHundreds(Right(number, 3));
if (temp != "")
{
dollars = string.Concat(string.Concat(temp, place[count]), dollars);
}
number = number.Length > 3 ? Left(number, number.Length - 3) : "";
count++;
}
if (includeDollarVerbiage)
{
if (dollars.Length == 0)
dollars = "Zero Dollars";
else if (dollars == "One")
dollars = "One Dollar";
else
dollars += " Dollars";
if (cents.Length == 0)
cents = " And Zero Cents";
else if (cents == "One")
cents = " And One Cent";
else
cents = string.Concat(" And ", cents, " Cents ");
}
else
{
if (cents.Length > 0)
cents = " Point " + cents;
}
string result = dollars + cents;
result = result.Replace(" ", " ");
if (allCaps)
result = result.ToUpper();
else
{
if (capitalize)
result = string.Concat(result.Substring(0, 1).ToUpper(), result.Substring(1, result.Length - 1).ToLower());
else
result = result.ToLower();
}
return result;
}
/// <summary>
/// This function will convert a currency to its word representation.
/// </summary>
/// <param name="amount">The amount.</param>
/// <param name="capitalize">Capitalizes the first word in the string.</param>
/// <returns>The amount in English.</returns>
public static string ConvertCurrencyToEnglish(decimal amount, bool capitalize)
{
return ConvertCurrencyToEnglish(amount, capitalize, true, false);
}
}
}
Thanks for the original post. Enjoy.
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