Use FileSystemWatcher on a single file in C#

c# .net filesystemwatcher
Jimmy picture Jimmy · Oct 9, 2012 · Viewed 29.6k times · Source

When i try to set the watcher path to a single file like so:

watcher.Path = filePath1;

I get the error:

The directory name C:\Cromos 3.0\repository\diagnostics\dwm01_2011_06_13__09_03.LXD is invalid.

Can you only set the path to a folder directory?

Answer

Steve picture Steve · Oct 9, 2012

Your error is setting the Path property with a full filename

watcher.Path = Path.GetDirectoryName(filePath1); 
watcher.Filter = Path.GetFileName(filePath1);

should work.

Not related to your proper question, but, of course, as stated in below comments, it is imperative to set the EnableRaisingEvents property to true to enable the FileSystemWatcher's functionality

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