Rx extensions: Where is Parallel.ForEach?

Question

I have a piece of code which is using Parallel.ForEach, probably based on a old version of Rx extensions or the Tasks Parallel Library. I installed a current ve

Answer 1

Here's a simple replacement:

class Parallel
{
    public static void ForEach(IEnumerable source, Action body)
    {
        if (source == null)
        {
            throw new ArgumentNullException("source");
        }
        if (body == null)
        {
            throw new ArgumentNullException("body");
        }
        var items = new List(source);
        var countdown = new CountdownEvent(items.Count);
        WaitCallback callback = state =>
        {
            try
            {
                body((T)state);
            }
            finally
            {
                countdown.Signal();
            }
        };
        foreach (var item in items)
        {
            ThreadPool.QueueUserWorkItem(callback, item);
        }
        countdown.Wait();
    }
}