如何等待异步void完成? [英] How to wait for async void to complete?

问题描述

我需要等待我的async void完成.它具有一些await Task.Delay函数，在继续之前我需要它们完成.这个void不会返回任何内容，因此我看不到将其设为async Task<>的理由，而且我还在此void内部改组了数组，并声明了一些变量.那么我该怎么做呢?是async Task<>唯一的方法吗?我的空白不希望任何参数/输入.

i need to wait for my async void to finish. It has some await Task.Delay functions in it and I need them to finish before it continues. This void doesn't return anything so I don't see a reason to make it async Task<> and I also shuffle an array inside this void and I declare some variables. So how can I do this ? Is async Task<> the only way ? My void is not expecting any parameters/inputs.

推荐答案

返回

Return Task (not Task<T>) instead of void. Note, the non-generic form of Task does not need to wrap a value. It's just for signalling completion or errors, not results. In the case of async methods, this is equivalent to a synchronous void return type. It means you can wait for your method to complete.

这篇关于如何等待异步void完成?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！