#1,004 – Converting a String to Uppercase or Lowercase

You can use the ToLower and ToUpper methods of the string type to convert a particular string to all lowercase or all uppercase.  In either case, a new string is returned.

            string peye = "Guy Noir";

            string peyeLower = peye.ToLower();
            string peyeUpper = peye.ToUpper();

            Console.WriteLine(peye);
            Console.WriteLine(peyeLower);
            Console.WriteLine(peyeUpper);