C# FileSystemWatcher Explained

FileSystemWatcher is a class in C# used to monitor changes in the file system. It can watch for operations such as creating, deleting, renaming, and modifying files and folders in a specified directory, as well as changes to file contents. When any change occurs in the file system, FileSystemWatcher triggers the corresponding event, allowing developers to perform specific actions such as updating file lists or syncing data by handling these events.

FileSystemWatcher can be used in various scenarios, such as:

1. Monitor the creation of new files and folders in a folder, as well as the deletion of old files and folders.
2. Monitor the renaming operations of files and folders.
3. Monitor changes in file content, such as when a file is modified, written to, or saved.
4. Automatically back up or synchronize changes in folders.
5. Monitor specific types of files and perform specific operations when the files are changed, such as parsing log files and processing data files.

In conclusion, FileSystemWatcher offers a convenient way to monitor changes in the file system and execute relevant actions when the corresponding events occur, enabling applications to dynamically respond to changes in the file system.