Sometimes you want to create a task that you want to start as async but you want to track its status at a later date. The problem is that a task created this way will appear to have completed, and you’ll never know if it faulted or not. One solution is use a Func and Unwrap the resulting task.
t = Task.Factory.StartNew(new Func(async () => { while (true) { await Task.Delay(1000); throw new ArgumentNullException(); } value = 1; })).Unwrap();
Edit – Whilst the above does have its uses, it’s better to use;
t = Task.Run(async () =>
Task.Run accepts Func and does the unwrapping for you.