等待一个无效的异步方法 [英] Wait for a void async method

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，我有一个像下面这样的函数:

for example, I have a function like below:

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

现在我想在继续其他地方之前确保所有内容都已加载.

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

推荐答案

最好的做法是标记函数 async void 仅当它是fire and forget方法时，如果你想await on，你应该将其标记为 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.

如果你仍然想等待，那么就这样包装它await Task.Run(() => blah())

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

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