How can I wait till the Parallel.ForEach completes

Question

I'm using TPL in my current project and using Parallel.Foreach to spin many threads. The Task class contains Wait() to wait till the task gets completed. Like that, how I can wait for the Parallel.ForEach to complete and then go into executing next statements?

Answer 1

You don't have to do anything special, Parallel.Foreach() will wait until all its branched tasks are complete. From the calling thread you can treat it as a single synchronous statement and for instance wrap it inside a try/catch.

Answer 2

You don't need that with Parallel.Foreach: it only executes the foreach in as many thread as there are processors available, but it returns synchronously.

More information can be found here

Answer 3

As everyone here said - you dont need to wait for it. What I can add from my experience: If you have an async body to execute and you await some async calls inside, it just ran through my code and did not wait for anything. So I just replaced the await with .Result - then it worked as intended. I couldnt find out though why is that so :/