CODEWITHSUNDEEP
c#.netfilesystemwatcherillegal-characters
Nathan May
Nathan May

Reputation: 33

FileSystemWatcher Illegal Characters only on CD

Super odd problem, so I will do my best to explain. Programming C# using FileSystemWatcher and everything works great on USB/hard drives. On a CD/DVD, some files/directories repeatedly crash the program. The unhandledexception states illegal characters in file path; however, it does not appear that there are any. One example that predictably will crash the program is G:\testing\testing\FileCheck\FileCheck\App.config but if I slightly modify to G:\testing\testing\FileCheck2\FileCheck\App.config the program works fine. No illegal characters were removed and the first path ALWAYS fails while the second path ALWAYS works.

Here is the exception args

System.UnhandledExceptionEventArgs G:\testing\testing\FileCheck\FileCheck\App.config
System.ArgumentException: Illegal characters in path.
   at System.IO.Path.CheckInvalidPathChars(String path, Boolean checkAdditional)
   at System.IO.Path.GetFileName(String path)
   at System.IO.FileSystemWatcher.MatchPattern(String relativePath)
   at System.IO.FileSystemWatcher.NotifyFileSystemEventArgs(Int32 action, String name)
   at System.IO.FileSystemWatcher.CompletionStatusChanged(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* overlappedPointer)
   at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)

If anyone has experience to prevent the error from occurring that would be amazing; otherwise, what is the best way to catch FileSystemWatcher errors so that they do not crash the program.

Upvotes: 0

Views: 120

Answers (0)

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