Re-ordering arbitrary an array of integers

Question

I have a method that accepts as argument an array of integers and I\'d just change arbitrary the order of its values

public static int[] _game_number = new         


        

Answer 1

What about extension method?

public static class ArrayExtensions
{
    private static Lazy random = new Lazy(() => new Random());

    public static IEnumerable GetReorderedElements(this T[] input)
    {
        if (input == null)
        {
            throw new ArgumentNullException("input");
        }

        var rnd = random.Value;        
        var nums = input.ToList();         
        var repeats = unusedNums.Length;

        while (repeats > 0)
        {
            var index_first = rnd.Next(0, nums.Length);
            var index_second = rnd.Next(0, nums.Length);

            var temp = nums[index_first];
            nums[index_first] = nums[index_second];
            nums[index_second] = temp;

            repeats -= 1;
        }

        return new ReadOnlyCollection(nums);
    }


    public static T[] GetReorderedElementsAsArray(this T[] input)
    {
        return GetRandomElements(input).ToArray();
    }
}

Usage:

_current_number = _game_number.GetReorderedElementsAsArray();