Async exception not being caught or being swallowed

Question

Update from the future: TL;DR to catch expressions in async methods you have to await, Task.WaitAll, or .Result.

Answer 1

You can handle unobserved Task exceptions as follows:

TaskScheduler.UnobservedTaskException += (object sender, UnobservedTaskExceptionEventArgs eventArgs) =>
{
      eventArgs.SetObserved();
      ((AggregateException)eventArgs.Exception).Handle(ex =>
      {
          //TODO: inspect type and handle exception
          return true;
      });
};