You will need to look at each part of the date and use the function to get the written equivalent. I have included a class below that converts integers to written text and extends it to support DateTime
conversion:
public static class WrittenNumerics { static readonly string[] ones = new string[] { "", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine" }; static readonly string[] teens = new string[] { "Ten", "Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen" }; static readonly string[] tens = new string[] { "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety" }; static readonly string[] thousandsGroups = { "", " Thousand", " Million", " Billion" }; private static string FriendlyInteger(int n, string leftDigits, int thousands) { if (n == 0) return leftDigits; string friendlyInt = leftDigits; if (friendlyInt.Length > 0) friendlyInt += " "; if (n < 10) friendlyInt += ones[n]; else if (n < 20) friendlyInt += teens[n - 10]; else if (n < 100) friendlyInt += FriendlyInteger(n % 10, tens[n / 10 - 2], 0); else if (n < 1000) friendlyInt += FriendlyInteger(n % 100, (ones[n / 100] + " Hundred"), 0); else friendlyInt += FriendlyInteger(n % 1000, FriendlyInteger(n / 1000, "", thousands + 1), 0); return friendlyInt + thousandsGroups[thousands]; } public static string DateToWritten(DateTime date) { return string.Format("{0} {1} {2}", IntegerToWritten(date.Day), date.ToString("MMMM"), IntegerToWritten(date.Year)); } public static string IntegerToWritten(int n) { if (n == 0) return "Zero"; else if (n < 0) return "Negative " + IntegerToWritten(-n); return FriendlyInteger(n, "", 0); } }
Disclaimer: Basic functionality courtesy of @Wedge
Using this class, just call the DateToWritten method:
var output = WrittenNumerics.DateToWritten(DateTime.Today);
Conclusion above: Twelve May Two Thousand Twelve