Working around the async void method

This recipe describes why async void methods are quite dangerous to use. You will learn in what situations it is acceptable to use this method and what to use instead, when possible.

Getting ready

To step through this recipe, you will need Visual Studio 2015. There are no other prerequisites. The source code for this recipe can be found at BookSamples\Chapter5\Recipe7.

How to do it...

To learn how to work with the async void method, perform the following steps:

1. Start Visual Studio 2015. Create a new C# console application project.

2. In the Program.cs file, add the following using directives:

   using System;
   using System.Threading.Tasks;
   using static System.Console;
   using static System.Threading.Thread;

3. Add the following code snippet below the Main method:

   static async Task AsyncTaskWithErrors()
   {
     string result = await GetInfoAsync("AsyncTaskException", 2);
     WriteLine(result);
   }
   
   static async void AsyncVoidWithErrors()
   {
     string result = await GetInfoAsync("AsyncVoidException...