Lambda expressions with multithreading in C#

Question

I am trying to understand why this program doesn\'t work

Expected output: numbers 0-19 in random order What I get when I run: some numbers repeat, sometimes 20 is pr

Answer 1

You should just use the TPL, its a lot easier and recommended over manual thread management:

Parallel.For(0, 20, x => {
    Thread.Sleep(1000);
    Console.WriteLine("IN callback: The value I got is " + x);
});

This will also block until the loop finishes, if you don't want that you can use the TPL Task, but I would definitely recommend avoiding threads.