等待无效的异步方法

本文介绍了等待无效的异步方法的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

如何等待void async方法完成其工作?

How can I wait for a void async method to finish its job?

例如，我有一个类似下面的功能:

for example, I have a function like below:

async void LoadBlahBlah() { await blah(); ... }

现在，我想确保所有内容都已加载，然后再继续其他操作.

now I want to make sure that everything has been loaded before continuing somewhere else.

推荐答案

最佳做法是仅在函数为async void时将其标记为忘却"方法，如果要等待，则应将其标记为async Task

Best practice is to mark function async void only if it is fire and forget method, if you want to await on, you should mark it as async Task.

如果您仍然想等待，请像这样包装它await Task.Run(() => blah())

In case if you still want to await, then wrap it like so await Task.Run(() => blah())