WaitAll vs WhenAll

Question

What is the difference between Task.WaitAll() and Task.WhenAll() from the Async CTP ? Can you provide some sample code to illustrate the different

Answer 1

What do they do:

• Internally both do the same thing.

---

What's the difference:

• WaitAll is a blocking call
• WhenAll - not - code will continue executing

---

Use which when:

• WaitAll when cannot continue without having the result
• WhenAll when what just to be notified, not blocked