Linq Orderby random ThreadSafe for use in ASP.NET

Question

i\'m using Asp.net MVC with Sharp Architecture.

I have this code:

return _repositoryKeyWord.FindAll(x => x.Category.Id == idCAtegory)
                     


        

Answer 1

Probably best to write your own extension method to do it.

public static class Extensions
{
    static readonly Random random = new Random();

    public static IEnumerable Shuffle(this IEnumerable items)
    {
        return Shuffle(items, random);
    }

    public static IEnumerable Shuffle(this IEnumerable items, Random random)
    {
        // Un-optimized algorithm taken from
        // http://en.wikipedia.org/wiki/Knuth_shuffle#The_modern_algorithm
        List list = new List(items);
        for (int i = list.Count - 1; i >= 1; i--) 
        {
            int j = random.Next(0, i);
            T temp = list[i];
            list[i] = list[j];
            list[j] = temp;
        }
        return list;
    }
}