Currency per line

Question

Normally I would use string.Format() to get a formatted string.

But I received a requirement that all amounts be printed as text, not numbers.

i.e. something like:

 Format(3000, "us"); // => Resulting text: "three thousand dollars" 

Is there a .NET library that can handle this (required)?

Answer 1

Is there a .NET library that can handle this (required)?

Short answer: No

You have to write your own, I would recommend you take a look at the following: converting numbers to C # words , How to convert an integer to its verbal representation? and, as one of them says, look at Euler’s project No. 17 and use it for a wider Google search.

Also, you have a problem with the names of currencies, should 'us' denote a currency or language, or even both? Is the Canadian dollar different from the US dollar?

For example, this is built in:

 // Gives USD var ISOCode = System.Globalization.RegionInfo.RegionInfo("US").ISOCurrencySymbol // Gives $ var symbol = System.Globalization.RegionInfo.RegionInfo("US").CurrencySymbol // Gives USD Dollar (i believe :)) var nameUSDENG = System.Globalization.RegionInfo.RegionInfo("US").CurrencyEnglishName // Gives Svensk Krona var nameSEKSWE = System.Globalization.RegionInfo.RegionInfo("SE").CurrencyNativeName // Gives Swedish Krona var nameSEKENG = System.Globalization.RegionInfo.RegionInfo("SE").CurrencyEnglishName 

I would advise you to start there and see where it touches you.

Answer 2

I looked around, but could not find a suitable version for converting to the English currency, so I combined several into this solution:

 public static class NumberExtensions { public static String toCurrency(this double number, String major, String minor, String endStr, int minorLength) { return ((decimal)number).toCurrency(major, minor, endStr, minorLength); } public static String toCurrency(this decimal number, String major, String minor, String endStr, int minorLength) { if (String.IsNullOrWhiteSpace(major)) throw new Exception("Must specify major currency"); if (String.IsNullOrWhiteSpace(minor)) throw new Exception("Must specify minor currency"); String numb = number.ToString(); String val = "", wholeNo = numb, points = "", andStr = major, pointStr = ""; int decimalPlace = numb.IndexOf("."); if (decimalPlace > 0) { wholeNo = numb.Substring(0, decimalPlace); points = numb.Substring(decimalPlace + 1); if (points.Length > minorLength) throw new Exception("Incorrect format"); if (Convert.ToInt32(points) > 0) { andStr = major + " and"; endStr = minor + " " + endStr; pointStr = Int32.Parse(points.Length == 1 ? points + "0" : points).toWords(); } } if (String.IsNullOrWhiteSpace(pointStr)) { if (endStr == minor + " " || endStr == null) { val = String.Format("{0} {1}", Int32.Parse(wholeNo).toWords().Trim(), andStr.Trim()); } else { val = String.Format("{0} {1} {2}", Int32.Parse(wholeNo).toWords().Trim(), andStr.Trim(), endStr.Trim()); } } else { val = String.Format("{0} {1} {2} {3}", Int32.Parse(wholeNo).toWords().Trim(), andStr.Trim(), pointStr.Trim(), endStr.Trim()); } return val; } public static string toWords(this int number) { if (number == 0) return "Zero"; if (number < 0) return "minus " + Math.Abs(number).toWords(); string words = ""; if ((number / 1000000) > 0) { words += (number / 1000000).toWords().TrimEnd() + " Million "; number %= 1000000; } if ((number / 1000) > 0) { words += (number / 1000).toWords().TrimEnd() + " Thousand "; number %= 1000; } if ((number / 100) > 0) { words += (number / 100).toWords().TrimEnd() + " Hundred "; number %= 100; } 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; } } 

And here is the unit test:

 [TestFixture] public class NumbericExtensionMethodsTests : TestBase { [Test] [TestCase(0.0, null, null, null, 2, ExpectedException = typeof(Exception))] [TestCase(0.0, "", null, null, 2, ExpectedException = typeof(Exception))] [TestCase(0.0, null, "", null, 2, ExpectedException = typeof(Exception))] [TestCase(0.0, "", "", null, 2, ExpectedException = typeof(Exception))] [TestCase(0.001, "Rand", "Cent", null, 2, ExpectedException = typeof(Exception))] [TestCase(0.001, "Rand", "Cent", null, 3, Result = "Zero Rand and One Cent")] [TestCase(0, "Rand", "Cent", null, 2, Result = "Zero Rand")] [TestCase(0.0, "Rand", "Cent", null, 2, Result = "Zero Rand")] [TestCase(0.01, "Rand", "Cent", null, 2, Result = "Zero Rand and One Cent")] [TestCase(0.1, "Rand", "Cent", null, 2, Result = "Zero Rand and Ten Cent")] [TestCase(0.10, "Rand", "Cent", null, 2, Result = "Zero Rand and Ten Cent")] [TestCase(0.10, "Rand", "Cent", "only", 2, Result = "Zero Rand and Ten Cent only")] [TestCase(1.10, "Rand", "Cent", "only", 2, Result = "One Rand and Ten Cent only")] [TestCase(1.0, "Rand", "Cent", "only", 2, Result = "One Rand only")] [TestCase(123312.32, "Rand", "Cent", null, 2, Result = "One Hundred and Twenty-Three Thousand Three Hundred and Twelve Rand and Thirty-Two Cent")] public string NumberToCurrency(decimal number, string major, string minor, string endStr, int minorLength) { return number.toCurrency(major, minor, endStr, minorLength); } [Test] [TestCase(0, Result = "Zero")] [TestCase(1, Result = "One")] [TestCase(2, Result = "Two")] [TestCase(3, Result = "Three")] [TestCase(4, Result = "Four")] [TestCase(5, Result = "Five")] [TestCase(6, Result = "Six")] [TestCase(7, Result = "Seven")] [TestCase(8, Result = "Eight")] [TestCase(9, Result = "Nine")] [TestCase(10, Result = "Ten")] [TestCase(11, Result = "Eleven")] [TestCase(12, Result = "Twelve")] [TestCase(13, Result = "Thirteen")] [TestCase(14, Result = "Fourteen")] [TestCase(15, Result = "Fifteen")] [TestCase(16, Result = "Sixteen")] [TestCase(17, Result = "Seventeen")] [TestCase(18, Result = "Eighteen")] [TestCase(19, Result = "Nineteen")] [TestCase(20, Result = "Twenty")] [TestCase(30, Result = "Thirty")] [TestCase(40, Result = "Forty")] [TestCase(50, Result = "Fifty")] [TestCase(60, Result = "Sixty")] [TestCase(70, Result = "Seventy")] [TestCase(80, Result = "Eighty")] [TestCase(90, Result = "Ninety")] [TestCase(99, Result = "Ninety-Nine")] [TestCase(100, Result = "One Hundred")] [TestCase(101, Result = "One Hundred and One")] [TestCase(111, Result = "One Hundred and Eleven")] [TestCase(121, Result = "One Hundred and Twenty-One")] [TestCase(1000, Result = "One Thousand")] [TestCase(1001, Result = "One Thousand and One")] [TestCase(1011, Result = "One Thousand and Eleven")] [TestCase(1021, Result = "One Thousand and Twenty-One")] [TestCase(1100, Result = "One Thousand One Hundred")] [TestCase(1101, Result = "One Thousand One Hundred and One")] [TestCase(1111, Result = "One Thousand One Hundred and Eleven")] [TestCase(1121, Result = "One Thousand One Hundred and Twenty-One")] [TestCase(12000, Result = "Twelve Thousand")] [TestCase(12001, Result = "Twelve Thousand and One")] [TestCase(12011, Result = "Twelve Thousand and Eleven")] [TestCase(12021, Result = "Twelve Thousand and Twenty-One")] [TestCase(12100, Result = "Twelve Thousand One Hundred")] [TestCase(12101, Result = "Twelve Thousand One Hundred and One")] [TestCase(12111, Result = "Twelve Thousand One Hundred and Eleven")] [TestCase(12121, Result = "Twelve Thousand One Hundred and Twenty-One")] [TestCase(60000, Result = "Sixty Thousand")] [TestCase(60001, Result = "Sixty Thousand and One")] [TestCase(60011, Result = "Sixty Thousand and Eleven")] [TestCase(60021, Result = "Sixty Thousand and Twenty-One")] [TestCase(60100, Result = "Sixty Thousand One Hundred")] [TestCase(60101, Result = "Sixty Thousand One Hundred and One")] [TestCase(60111, Result = "Sixty Thousand One Hundred and Eleven")] [TestCase(60121, Result = "Sixty Thousand One Hundred and Twenty-One")] [TestCase(61000, Result = "Sixty-One Thousand")] [TestCase(61001, Result = "Sixty-One Thousand and One")] [TestCase(61011, Result = "Sixty-One Thousand and Eleven")] [TestCase(61021, Result = "Sixty-One Thousand and Twenty-One")] [TestCase(61100, Result = "Sixty-One Thousand One Hundred")] [TestCase(61101, Result = "Sixty-One Thousand One Hundred and One")] [TestCase(61111, Result = "Sixty-One Thousand One Hundred and Eleven")] [TestCase(61121, Result = "Sixty-One Thousand One Hundred and Twenty-One")] [TestCase(100000, Result = "One Hundred Thousand")] [TestCase(100001, Result = "One Hundred Thousand and One")] [TestCase(100011, Result = "One Hundred Thousand and Eleven")] [TestCase(100021, Result = "One Hundred Thousand and Twenty-One")] [TestCase(100100, Result = "One Hundred Thousand One Hundred")] [TestCase(100101, Result = "One Hundred Thousand One Hundred and One")] [TestCase(100111, Result = "One Hundred Thousand One Hundred and Eleven")] [TestCase(100121, Result = "One Hundred Thousand One Hundred and Twenty-One")] [TestCase(101000, Result = "One Hundred and One Thousand")] [TestCase(101001, Result = "One Hundred and One Thousand and One")] [TestCase(101011, Result = "One Hundred and One Thousand and Eleven")] [TestCase(101021, Result = "One Hundred and One Thousand and Twenty-One")] [TestCase(101100, Result = "One Hundred and One Thousand One Hundred")] [TestCase(101101, Result = "One Hundred and One Thousand One Hundred and One")] [TestCase(101111, Result = "One Hundred and One Thousand One Hundred and Eleven")] [TestCase(101121, Result = "One Hundred and One Thousand One Hundred and Twenty-One")] [TestCase(112000, Result = "One Hundred and Twelve Thousand")] [TestCase(112001, Result = "One Hundred and Twelve Thousand and One")] [TestCase(112011, Result = "One Hundred and Twelve Thousand and Eleven")] [TestCase(112021, Result = "One Hundred and Twelve Thousand and Twenty-One")] [TestCase(112100, Result = "One Hundred and Twelve Thousand One Hundred")] [TestCase(112101, Result = "One Hundred and Twelve Thousand One Hundred and One")] [TestCase(112111, Result = "One Hundred and Twelve Thousand One Hundred and Eleven")] [TestCase(112121, Result = "One Hundred and Twelve Thousand One Hundred and Twenty-One")] [TestCase(160000, Result = "One Hundred and Sixty Thousand")] [TestCase(160001, Result = "One Hundred and Sixty Thousand and One")] [TestCase(160011, Result = "One Hundred and Sixty Thousand and Eleven")] [TestCase(160021, Result = "One Hundred and Sixty Thousand and Twenty-One")] [TestCase(160100, Result = "One Hundred and Sixty Thousand One Hundred")] [TestCase(160101, Result = "One Hundred and Sixty Thousand One Hundred and One")] [TestCase(160111, Result = "One Hundred and Sixty Thousand One Hundred and Eleven")] [TestCase(160121, Result = "One Hundred and Sixty Thousand One Hundred and Twenty-One")] [TestCase(161000, Result = "One Hundred and Sixty-One Thousand")] [TestCase(161001, Result = "One Hundred and Sixty-One Thousand and One")] [TestCase(161011, Result = "One Hundred and Sixty-One Thousand and Eleven")] [TestCase(161021, Result = "One Hundred and Sixty-One Thousand and Twenty-One")] [TestCase(161100, Result = "One Hundred and Sixty-One Thousand One Hundred")] [TestCase(161101, Result = "One Hundred and Sixty-One Thousand One Hundred and One")] [TestCase(161111, Result = "One Hundred and Sixty-One Thousand One Hundred and Eleven")] [TestCase(161121, Result = "One Hundred and Sixty-One Thousand One Hundred and Twenty-One")] [TestCase(1000000, Result = "One Million")] [TestCase(Int32.MaxValue, Result = "Two Thousand One Hundred and Forty-Seven Million Four Hundred and Eighty-Three Thousand Six Hundred and Forty-Seven")] /*Assuming Millions will work if Thousands worked*/ public string IntToWords(int number) { return number.toWords().Trim(); } } 

Enjoy it perfectly: D

Loans

• LukeH's answer for converting numbers to words for the toWords function. (thanks to Lankymart for this.)
• Other non-standard, please edit and provide a loan if you find

Answer 3

I have not tested it, but maybe this will fix your problem?

Nuget package

It says that he supports the Russian language.

From the package description:

Number to text converter. Supported languages ​​English Russian Spanish Turkish

Using:

 var number = 123456.78 var moneyText = number.ToText("usd", "en"); var number = 123456.78; var moneyText = number.ToText(Nut.Currency.USD, Nut.Language.English); var number = 123456.78; var options = new Nut.Options { MainUnitNotConvertedToText = true, SubUnitNotConvertedToText = true, MainUnitFirstCharUpper = true, SubUnitFirstCharUpper = true, CurrencyFirstCharUpper = true, SubUnitZeroNotDisplayed = true } var moneyText = number.ToText(Nut.Currency.USD, Nut.Language.English, options); 

Answer 4

There is a mature library to work with you needd. He was called a humanizer.

You can see that here: NuGet Package of the Week: Humanizer Makes .NET Data Types More Human

An open source project located on GitHub

As you can see, he does what you need and much more. And he has many localizations.

Some examples:

 1.ToWords() => "one" 10.ToWords() => "ten" 11.ToWords() => "eleven" 122.ToWords() => "one hundred and twenty-two" 3501.ToWords() => "three thousand five hundred and one" 

You can also pass a second argument, GrammaticalGender, ToWords, to indicate with which gender the number should be displayed.

 1.ToWords(GrammaticalGender.Masculine) => "" 1.ToWords(GrammaticalGender.Feminine) => "" 1.ToWords(GrammaticalGender.Neuter) => "" 

Answer 5

For Russian, you can use my library: https://github.com/nick-buhro/NumToWords
It is also available on nuget: https://www.nuget.org/packages/NickBuhro.NumToWords

Example:

 var unit = new UnitOfMeasure(Gender.Masculine, "", "", ""); var text = RussianConverter.Format(3000, unit); Console.WriteLine(text); // Output: