file change event

Question

How do I get my program to run a function when a specific file has changed?

Kirtan Patel · Answer

Hi Friend Here is Code for watching File using System.IO; private void Form1_Load( object sender EventArgs e) { FileSystemWatcher fsw = new FileSystemWatcher ( @E:\  *.txt ); fsw.EnableRaisingEvents = true ; fsw.NotifyFilter = NotifyFilters .LastWrite | NotifyFilters .Attributes; fsw.Changed += new FileSystemEventHandler (fsw_Changed); } public void fsw_Changed( Object Sender FileSystemEventArgs e) { if (e.Name == Test.txt ) { MessageBox .Show( File Changed !! ); } }

Roei Bar · Answer

you can do this via 2 options: either via a control called FileSystemWatcher like this http://www.codeproject.com/KB/vb/AdvancedFileSystemWatcher.aspx or via a timer that will check on the file on every period of time and update the application on that.