Asynchronous Delegates Vs Thread/ThreadPool?

Question

I need to execute 3 parallel tasks and after completion of each task they should call the same function which prints out the results.

I don\'t understand in .net why

Answer 1

Delegate.BeginInvoke grabs a threadpool thread and executes the passed delegate on that thread. So when you use BeginInvoke the .NET Framework does a lot of work like creating new thread, starting it etc.

You can also take a look at ThreadPool.QueueUserWorkItem(delegate { /* do stuff */ }); for an alternative approach to async calls.