How Can I Await Multiple Asynchronous Tasks Simultaneously and Access Their Results?

Efficiently Handling Multiple Concurrent Asynchronous Operations

This example demonstrates how to manage three independent asynchronous operations—FeedCat(), SellHouse(), and BuyCar()—each returning a distinct object (Cat, House, Tesla respectively). The code requires all operations to finish before proceeding, and needs access to the results of each.

The optimal solution leverages Task.WhenAll() for parallel execution and awaiting:

<code class="language-csharp">var catTask = FeedCat();
var houseTask = SellHouse();
var carTask = BuyCar();

await Task.WhenAll(catTask, houseTask, carTask);</code>

After Task.WhenAll() confirms completion, individual results are easily accessed:

<code class="language-csharp">var cat = await catTask;
var house = await houseTask;
var car = await carTask;</code>

It's important to note that the asynchronous functions return "hot" tasks (already initiated). While Task.Result is an option (since completion is guaranteed), using await is generally preferred for its readability and improved error handling.

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