C# asynchronous async-await .net-framework-version

在另一个窗口中的异步功能

发布于 2025-02-06 06:16:22 字数 700 浏览 0 评论 0原文

我在运行ASYNC功能时遇到问题。我正在尝试进行异步调用，以设置一些Timmers来运行一些代码。我已经尝试使功能异步，我觉得自己做错了什么。我已经将功能范围缩小到两个功能，并在功能中添加了20秒的睡眠以测试问题，我想知道我的睡眠是否在暂停整个应用程序，还是我不正确地进行异步？正确方向的任何点都会有所帮助。先感谢您。

private async void RunAsyncExample(){
    Task timersTask = mainWindow.StartTimers();   //This has a 20 sec sleep
    mainWindow.PullReceipt(handoff);              //This should not wait
    await timersTask;                             //This should wait
}

以下是mainwindow.starttimers

public async Task<Task> StartTimers()
{
    _log.LogError("starting timer");
    System.Threading.Thread.Sleep(20000);
    _log.LogError("ending timer");
    return Task.CompletedTask;
}

原文

I'm having issues with running a function as async. I'm trying to make an async call to set up some timmers to run some code. I've tried making the function async and I feel like I'm doing something wrong. I've narrowed down the functionality to two functions and added a 20-second sleep in the function to test out the issue and I'm wondering if my sleep is pausing the whole application or am I doing async incorrectly? Any point in the right direction would be helpful. Thank you in advance.

private async void RunAsyncExample(){
    Task timersTask = mainWindow.StartTimers();   //This has a 20 sec sleep
    mainWindow.PullReceipt(handoff);              //This should not wait
    await timersTask;                             //This should wait
}

Below is the mainWindow.StartTimers

public async Task<Task> StartTimers()
{
    _log.LogError("starting timer");
    System.Threading.Thread.Sleep(20000);
    _log.LogError("ending timer");
    return Task.CompletedTask;
}

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小梨窩很甜 2025-02-13 06:16:22

尝试以下操作：

public async Task StartTimers()
{
    _log.LogError("starting timer");
    await Task.Delay(20000);
    _log.LogError("ending timer");
}

顺便说一句，您的代码有很多问题：

声明async方法。
如果不等待 ，您不应
您应该在UI外放置非UI代码
，应该正确命名方法。 startTimers没有启动任何计时器，因此它不是适当的名称。
async void仅适用于异步事件处理程序

Try the following:

public async Task StartTimers()
{
    _log.LogError("starting timer");
    await Task.Delay(20000);
    _log.LogError("ending timer");
}

Incidentally, your code has many issues:

You should not declare an async method if it doesn't await
You should not Sleep
You should put non UI code outside UI
You should name methods properly. StartTimers doesn't start any timer, so it is not an appropriate name.
async void is appropriate only for asynchronous event handlers

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