Task.WaitAll，如何找到导致 AggregateException 的任务 [英] Task.WaitAll, how to find the tasks causing AggregateException

问题描述

假设我得到了以下代码:

Let's say that I got the following code:

var tasks = BuildTaskList();
try
{
    Task.WaitAll(tasks.ToArray());
}
catch (AggregateException exception)
{

}

我如何知道哪个任务在 exception.InnerExceptions 中抛出了哪些异常?

How do I know which task threw which of the exceptions in exception.InnerExceptions?

推荐答案

你还有Tasks的列表，每个Task都有一个Exception代码>属性.使用它，您可以找出哪些异常属于哪个 Task.

You still have the list of Tasks, and each Task has an Exception property. Using that you can figure out which exceptions belong with which Task.

但是，如果可以，最好使用 Task.WhenAll 或 TaskFactory.ContinueWhenAll 而不是阻塞等待.

But, if you can, it'd be better to use Task.WhenAll or TaskFactory.ContinueWhenAll than do a blocking Wait.

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