GroupBy-Comparer-Sample-1.cs

using System;
using System.Linq;

namespace Grouping
{
    public class GroupByComparer1
    {
        //This sample uses GroupBy to partition trimmed elements of an array using a
        // custom comparer that matches words that are anagrams of each other.
        //Outputs the following to Console:
        //from
        //    from
        //    form
        //--------------
        //salt
        //    salt
        //    last
        //--------------
        //earn
        //    earn
        //    near
        public static void MethodSyntaxExample()
        {
            string[] anagrams = { "from   ", " salt", " earn ", "  last   ", " near ", " form  " };

            var orderGroups = anagrams.GroupBy(w => w.Trim(), new AnagramEqualityComparer());

            foreach (var s in orderGroups)
            {
                Console.WriteLine("--------------");
                Console.WriteLine(s.Key);
                foreach (var i in s.ToList())
                {
                    Console.WriteLine(i);
                }
            }
        }
    }
}