C# threadpooling trouble

Question

I am new to threading, so please forgive me if my question is at an amateur level.The example below is a simplified version of what I am trying to do. This works if method go is static, I want it to work when Go is not static. How do I make it work.

using System; using System.Threading; using System.Diagnostics; public class ThreadPoolExample { static void Main() { for (int i = 0; i < 10; i++) { ThreadPool.QueueUserWorkItem(Go, i); } Console.ReadLine(); } void Go(object data) { Console.WriteLine(data); } }

If someone can make this work and add a notification that all threads have completed execution, that would be awesome.

Alexei Levenkov · Accepted Answer · 2012-05-25 00:19:26Z

I suspect there it has nothing to do with Go being static or not, but rather the fact that you can't call/use instance method "Go" from static "Main". Either both need to be static or you need to call/use Go on an instance of your class like:

ThreadPool.QueueUserWorkItem(value => new ThreadPoolExample().Go(value), i);

Well, yes, except your (correct) solution does in fact have to do with Go being static. ;)

Md Kamruzzaman Sarker · Accepted Answer · 2012-05-25 00:30:42Z

Do it in this way

class ThreadPoolExample { static void Main(string[] args) { for (int i = 0; i < 10; i++) { ThreadPoolExample t = new ThreadPoolExample(); ThreadPool.QueueUserWorkItem(t.Go, i); } Console.ReadLine(); } void Go(object data) { Console.WriteLine(data); } }

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