KITFORMA · EDITORIAL ANSWER
Why does try/catch around an async void helper miss its later exception?
KitForma editorial guide. An async void method has no returned task carrying completion to the caller. After its first asynchronous suspension, the caller cannot await or catch it like a Task-returning operation.
Step-by-step answer
An async void method has no returned task carrying completion to the caller. After its first asynchronous suspension, the caller cannot await or catch it like a Task-returning operation.
Return Task for ordinary asynchronous helpers and await it inside the caller’s try/catch. Reserve async void for event-handler signatures that require it, and handle errors within that handler. Do not silently discard the task merely to preserve an old synchronous interface.
Force an exception after an awaited delay and verify the caller sees it. A successful immediate return is not completion. Event-handler error reporting should avoid raw input data and must not falsely signal success.
Sources and verification
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