FileSystemWatcher on mapped network drive
Are there any special considerations (other than permissions) that you should take into account when implementing a FSW to monitor a mapped network drive. Will the FSW throw an exception i开发者_运维百科f the drive loses its connection? If not (or if I just catch/handle that exception), will it be sufficient to poll the DirectoryInfo.Exists property to verfity the connection?
Well, I have used the FileSystemWatcher
to monitor a shared folder that exists on another computer in the network, and here is my experience:
- You can check the connection via
File.Exists
orFolder.Exists
. - The
FileSystemWatcher
will not throw an exception if the you lose connection to that shared folder. Instead, whenever the connection is lost you will get this error message: "The specified network name is no longer available". When you get that error, theFSW
will no longer handle any data even if the connection is reestablished, so handleFileSystemWatcher.Error
event and if the error is raised, resetEnableRaisingEvents
totrue
again, or reinitialize theFSW
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