How Can I Implement Asynchronous Programming in C# Console Applications?

C#console application asynchronous programming: understand

modifier async In the asynchronous programming, the

modifier representation method will run concurrently with other code. However, in the console application, the

method cannot be defined as async, which brings a challenge to the developers who want the program asynchronous. Main async This article discusses this issue in depth and discusses the replacement method of achieving asynchronous behavior in the console application.

Dormitory

async In Visual Studio 2012, the method is prohibited as

. However, in Visual Studio 2017 Update 3 (15.3) and higher versions, as long as

or Main, the language now supports the async Task method. This allows developers to write the following code: Task<T> async Main This method seems to block the main thread, similar to the use of

. However, before the official language specification of C# 7.1, this behavior is still a hypothesis.

<code class="language-csharp">class Program
{
    static async Task Main(string[] args)
    {
        Bootstrapper bs = new Bootstrapper();
        var list = await bs.GetList();
    }
}</code>

The alternative method of the asynchronous console application GetAwaiter().GetResult()

When the method is not feasible, the developer can adopt one of the following alternative methods:

Customized context:

Create a customized "main loop" compatible with async compatible for the console application. This cycle acts as a container for asynchronous methods. Main

Oblock the main thread:

Obstruct the main console thread before the asynchronous work is completed. This can be implemented in the following methods:
1. async By using instead of
or
2. , developers can avoid the packaging that occurs when using these methods.
In short, although the

<code class="language-csharp">class Program
{
    static void Main(string[] args)
    {
        MainAsync(args).GetAwaiter().GetResult();
    }

    static async Task MainAsync(string[] args)
    {
        Bootstrapper bs = new Bootstrapper();
        var list = await bs.GetList();
    }
}</code>

method provides a more direct method for the asynchronous console application, it is not suitable for the old version of Visual Studio or when the

GetAwaiter().GetResult() method is not suitable for specific implementation. Can use alternative methods. Wait()

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