C#- How to parallel for each for list of methods?

Question

I have list of methods and need to make parallelize them. How to do that in C#? I see that there is a Parallel namespace?How to use it?

method1()
method2()
method3()
method4()

score 5 · Answer 1 · answered Sep 17 '16 at 10:02

5

Parallel.Invoke(
    () => method1(),
    () => method2(),
    () => method3(),
    () => method4()
)

Add namespace System.Threading.Tasks

answered Sep 17 '16 at 10:02

Backs

It still stuck while invoking them? I don't know why? – Sep 17 '16 at 10:42
@Hanaa `Parallel.Invoke` will wait while all methods complete. If you need run them and go futher use `Task.Run(() => method1())` – Backs Sep 17 '16 at 11:46
Please, could you check this? http://stackoverflow.com/questions/39555945/parallelize-minimize-time-reading-number-of-sheets-from-excel-file – Sep 18 '16 at 09:13

score 2 · Answer 2 · answered Sep 17 '16 at 10:02

You can create a list of Action delegate where each delegate is a call to a given method:

List<Action> actions = new List<Action>
{
     method1,
     method2,
     method3
};

And then use Parallel.ForEach to call them in parallel:

Parallel.ForEach(actions, action => action());

2 Answers2