Question

Which of the following class in C# is used to monitor the files on your system by programming?
1. FileSystemWatcher Class
2. FileSystemMonitor Class
3. FileWatcher Class
4. SystemWatcher Class

Answer 1

Correct Answer - Option 1 : FileSystemWatcher Class

  C# FileSystemWatcher listens to the file system and places a watch on a directory, its subdirectories, and files and notifies if any changes are made to the directory. This class is useful when you need to auto-update the updates in a directory.

For example, if you want to create an auto-backup of a folder, you can implement a File system watcher service that watches a directory or entire machine and find when and what changes are made, and copy the changes to the backup device.

C# FileSystemWatcher acts as a watchdog for file system changes and raises an event when a change occurs. You must specify a directory to be monitored. The class can monitor changes to subdirectories and files within the specified directory.

Hence the correct answer is FileSystemWatcher Class.