Using FileSystemWatcher
, you might observe the Changed
event firing twice after a single file modification. This isn't a bug, but a known behavior. Let's examine a typical scenario:
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This code monitors "Version.txt". Modifying and saving the file often triggers OnChanged
twice. This happens because the file system performs multiple actions during the write process, each potentially triggering a separate event.
While refining NotifyFilter
to restrict monitored actions can help, it's not a guaranteed solution. In some situations, you might need to implement custom duplicate event filtering (a workaround).
For more detailed information on this behavior and potential solutions, consult this helpful resource: FileSystemWatcher Tips.
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