Spawn Multiple Threads for work then wait until all finished

Question

just want some advice on \"best practice\" regarding multi-threading tasks.

as an example, we have a C# application that upon startup reads data from various \"type

Answer 1

If you are using .NET 3.5 or below, you can use an array of AsyncResult or BackgroundWorker and count how many threads have returned (just don't forget to decrease counter with interlocked operations) (see http://www.albahari.com/threading/ as a reference).

If you are using .NET 4.0 a parallel for is the simplest approach.