using System;

using System.Threading;

using System.Threading.Tasks;

using System.Linq;

​

public static class Program

{

    public static void Main()

    {

        int c = 0;

        Action[] actions = Enumerable.Range(1, 1000).Select(n => new Action(() =>

        {

            Interlocked.Increment(ref c);

            if (n % 3 == 0) throw new ApplicationException();

        })).ToArray();

​

        try { c = 0; Parallel.For(0, actions.Length, i => actions[i]()); }

        catch (AggregateException aex)

        { Console.WriteLine($"Parallel.For, Exceptions: {aex.InnerExceptions.Count}/{c}"); }

​

        try { c = 0; Parallel.ForEach(actions, action => action()); }

        catch (AggregateException aex)

        { Console.WriteLine($"Parallel.ForEach, Exceptions: {aex.InnerExceptions.Count}/{c}"); }

​

        try { c = 0; Parallel.Invoke(actions); }

        catch (AggregateException aex)

        { Console.WriteLine($"Parallel.Invoke, Exceptions: {aex.InnerExceptions.Count}/{c}"); }

    }

}

​