using System;

using System.Collections;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        String[] weekdayArray = {"Monday", "Saturday", "Wednesday", "Tuesday", "Monday", "Friday"};

        var daysOfWeek = weekdayArray

            .Select(str => str.ToDayOfWeek())

            .OrderBy(dow => dow);

        foreach (var day in daysOfWeek){

            Console.WriteLine(day);

        }

    }

​

}

​

public static class ExtensionMethods{

        public static DayOfWeek ToDayOfWeek(this string str) {

        return (DayOfWeek)Enum.Parse(typeof(DayOfWeek), str);

    }

}