Watching a text File for Activity

[lucbrunet]

Hello,

I know you can use the FileSystemWatcher to raise events in .NET code when new files come into the foler or get updated or whatnot, but I'm trying to implement something where I can watch a specific file that stays open, and when something is written to it, it raises an event in my code and I can go read from the file. Does anyone know how this could be done?

Thanks!!

[Phil Weber]

Isn't the file updated when something gets written to it? If so, can't you use the FileSystemWatcher to raise an event?

[lucbrunet]

Yes, but how do I know for sure which file was updated? Wether it was the file I want to look at, or another file in the folder.

[Phil Weber]

In the event handler for the FileSystemWatcher, check the last-updated time of the file in which you're interested. If it has been updated within the last n seconds, then process it.

[KelosPelmand]

You could also check the FullPath or Name properties of the FileSystemEventArgs you get in the event to see if it matches the name you want.

[darren]

set
filesystemwatcher.filter = "yourfile.extension"

and you only get events for the file of interest.

Darren