Random element of List from LINQ SQL

Question

I\'m using C# 3.5 and am currently using Linq to get all users from a user table and put them in a list.

Now I would like to return a random

Answer 1

Why not create a generic helper and/or extension?!

namespace My.Core.Extensions
{
    public static class EnumerableHelper
    {
        private static Random r;

        static EnumerableHelper()
        {
            r = new Random();
        }

        public static T Random(IEnumerable input)
        {
            return input.ElementAt(r.Next(input.Count()));
        }

    }

    public static class EnumerableExtensions
    {
        public static T Random(this IEnumerable input)
        {
            return EnumerableHelper.Random(input);
        }
    }
}

Usage would be:

        var list = new List() { 1, 2, 3, 4, 5 };

        var output = list.Random();