It is an encapsulation of idea that “Something happened”. Delegates and events provide notifications to client applications when some state changes of an object. NET supports event driven programming via delegates. C# Recap : Events, Regex, Timers and Settings EventsĪn event is a message sent by an object to signal the occurrence of an action.Ĭ# and.
#Open source filewatcher code#
The source code has additional features like filter specific filetypes and filter specific folders using regex, you can grab a working demo of this code from my GitHub repository and check it out. FilesWatcher.OnFileReady += OnFileReady private static void OnFileReady (object sender, FileChangeEventArgs e) You‘ll need to subscribe to the OnFileReady Event, and do whatever you like with it. This library is not so perfect and you can find yourself getting multiple events on the same file, causing you ‘losing your seas’. Renamed: This event is triggered when a file or a directory in the path being monitored is renamed.Error: This event is triggered there is an error due to changes made in the path being monitored.Deleted: This event is triggered when a file or a directory in the path being monitored is deleted.Created: This event is triggered when a file or a directory in the path being monitored is created.Changed: This event is triggered when a file or a directory in the path being monitored is changed.The FileSystemWatcher raises the following events when changes occur to a directory that it is monitoring. In order for the FileSystemWatcher to work, you should specify a directory that needs to be monitored. It watches a file or a directory in your system for changes and triggers events when changes occur.
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The FileSystemWatcher class in the System.IO namespace can be used to monitor changes to the file system. (Figure 2) Client Uploading file to FTP FileSystemWatcher class :