This guide addresses managing missed and duplicate events in FileSystemWatcher, suggesting solutions for these common issues.
We organize how to use FileSystemWatcher and its pitfalls - missed events, duplicate notifications, completion-detection traps, rescans, atomic claims, and idempotency. Archived version of https://comcomponent.com/en/blog/2026/03/10/000-filesystemwatcher-safe-basics/, as published on 2026-07-27. The live article is maintained and may change after this date. First published 2026-03-10.
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