How to capitalize the first character of each word, or the first character of a whole string, with C#?

Question

I could write my own algorithm to do it, but I feel there should be the equivalent to ruby\'s humanize in C#.

I googled it but only found ways to humanize dates.

Answer 1

I have achieved the same using custom extension methods. For First Letter of First sub-string use the method yourString.ToFirstLetterUpper(). For First Letter of Every sub-string excluding articles and some propositions, use the method yourString.ToAllFirstLetterInUpper(). Below is a console program:

class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("this is my string".ToAllFirstLetterInUpper());
            Console.WriteLine("uniVersity of lonDon".ToAllFirstLetterInUpper());
        }
    }

    public static class StringExtension
    {
        public static string ToAllFirstLetterInUpper(this string str)
        {
            var array = str.Split(" ");

            for (int i = 0; i < array.Length; i++)
            {
                if (array[i] == "" || array[i] == " " || listOfArticles_Prepositions().Contains(array[i])) continue;
                array[i] = array[i].ToFirstLetterUpper();
            }
            return string.Join(" ", array);
        }

        private static string ToFirstLetterUpper(this string str)
        {
            return str?.First().ToString().ToUpper() + str?.Substring(1).ToLower();
        }

        private static string[] listOfArticles_Prepositions()
        {
            return new[]
            {
                "in","on","to","of","and","or","for","a","an","is"
            };
        }
    }

OUTPUT

This is My String
University of London
Process finished with exit code 0.