How to use FileSystemWatcher class ?

Here is the sample code ,,just try it,,,

working properly


code:

namespace FileMonitor  

{ 

    public interface EventsList 

    { 

        void OnRenamed(object source, RenamedEventArgs e); 

        void OnChanged(object source, FileSystemEventArgs e); 

    } 

      

    public  class MonitorEngine  

    { 

        private String path; 

        private EventsList events = null; 

     

        public MonitorEngine(String path,EventsList ev) 

        { 

            this.events=ev; 

            this.path=path; 

        } 

        public void WatcherFiles() 

        { 

            FileSystemWatcher watcher = new FileSystemWatcher(); 

            try 

            { 

                watcher.Path = path; 

                watcher.IncludeSubdirectories=true; 

            } 

            catch(ArgumentException ex)  

            { 

                MessageBox.Show(ex.Message); 

                return; 

            } 

             

            // setup what we are looking for 

            watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite| 

                                   NotifyFilters.FileName  | NotifyFilters.DirectoryName; 

             

            watcher.Filter = "*.*"; 

             

            // Add event handlers. 

            watcher.Changed += new FileSystemEventHandler(events.OnChanged); 

            watcher.Created += new FileSystemEventHandler(events.OnChanged); 

            watcher.Deleted += new FileSystemEventHandler(events.OnChanged); 

            watcher.Renamed += new RenamedEventHandler(events.OnRenamed); 

         

            // Begin watching the directory. 

            watcher.EnableRaisingEvents = true;  

             

        } 

    } 

}