Awaiting multiple Tasks with different results

by

After you use WhenAll, you can pull the results out individually with await:

var catTask = FeedCat();
var houseTask = SellHouse();
var carTask = BuyCar();

await Task.WhenAll(catTask, houseTask, carTask);

var cat = await catTask;
var house = await houseTask;
var car = await carTask;

You can also use Task.Result (since you know by this point they have all completed successfully). However, I recommend using await because it’s clearly correct, while Result can cause problems in other scenarios.

More Related Contents:

  1. Async/await vs BackgroundWorker
  2. Using async/await for multiple tasks
  3. StaTaskScheduler and STA thread message pumping
  4. TAP global exception handler
  5. What’s the difference between Task.Start/Wait and Async/Await?
  6. Why should I prefer single ‘await Task.WhenAll’ over multiple awaits?
  7. Synchronously waiting for an async operation, and why does Wait() freeze the program here
  8. How to use non-thread-safe async/await APIs and patterns with ASP.NET Web API?
  9. Enforce an async method to be called once
  10. Is there anything like asynchronous BlockingCollection?
  11. Cancelling a pending task synchronously on the UI thread
  12. What is the use for Task.FromResult in C#
  13. Waiting for async/await inside a task
  14. Revisiting Task.ConfigureAwait(continueOnCapturedContext: false)
  15. Await operator can only be used within an Async method [duplicate]
  16. ConfigureAwait pushes the continuation to a pool thread
  17. How can I prevent synchronous continuations on a Task?
  18. If my interface must return Task what is the best way to have a no-operation implementation?
  19. multiple awaits vs Task.WaitAll – equivalent?
  20. Executing tasks in parallel
  21. Difference between returning and awaiting a Task in an async method [duplicate]
  22. Use Task.Run() in synchronous method to avoid deadlock waiting on async method?
  23. Task.Factory.StartNew with async lambda and Task.WaitAll
  24. A pattern for self-cancelling and restarting task
  25. How to correctly write Parallel.For with async methods
  26. What is the correct way to cancel an async operation that doesn’t accept a CancellationToken?
  27. Converting async/await to Task.ContinueWith
  28. How do I get a return value from Task.WaitAll() in a console app?
  29. Create a completed Task
  30. Wrapping ManualResetEvent as awaitable task

Leave a Comment