Check out the FileSystemWatcher documentation in the .NET
framework SDK reference. It has an example that claims to do
what you want. I'm attaching the C# example from that page
below.
Andrew Queisser
***********************
public class Watcher
{
public static void Main()
{
string[] args = System.Environment.GetCommandLineArgs();
// If a directory is not specified, exit program.
if(args.Length != 2)
{
// Display the proper way to call the program.
Console.WriteLine("Usage: Watcher.exe (directory)");
return;
}
// Create a new FileSystemWatcher and set its properties.
FileSystemWatcher watcher = new FileSystemWatcher();
watcher.Path = args[1];
/* Watch for changes in LastAccess and LastWrite times, and
the renaming of files or directories. */
watcher.NotifyFilter = NotifyFilters.LastAccess |
NotifyFilters.LastWrite
| NotifyFilters.FileName | NotifyFilters.DirectoryName;
// Only watch text files.
watcher.Filter = "*.txt";
// Add event handlers.
watcher.Changed += new FileSystemEventHandler(OnChanged);
watcher.Created += new FileSystemEventHandler(OnChanged);
watcher.Deleted += new FileSystemEventHandler(OnChanged);
watcher.Renamed += new RenamedEventHandler(OnRenamed);
// Begin watching.
watcher.EnableRaisingEvents = true;
// Wait for the user to quit the program.
Console.WriteLine("Press \'q\' to quit the sample.");
while(Console.Read()!='q');
}
// Define the event handlers.
private static void OnChanged(object source, FileSystemEventArgs e)
{
// Specify what is done when a file is changed, created, or deleted.
Console.WriteLine("File: " + e.FullPath + " " + e.ChangeType);
}
private static void OnRenamed(object source, RenamedEventArgs e)
{
// Specify what is done when a file is renamed.
Console.WriteLine("File: {0} renamed to {1}", e.OldFullPath,
e.FullPath);
}
}
"Ron Vecchi" <rv*****@xilehdvecchi.com> wrote in message
news:OI**************@TK2MSFTNGP11.phx.gbl...
Hi all,
Can someone point me in the direction on this one, resources or examples.
I am writing a Windows Service to monitor a folder. When I file is
modified within the folder or any subfolders it should write the name of the file
to a xml file.
Then at a specifed time all the files in the xml quene will be backed up
on a network share.
How would I go about monitoring a folder and all subfolders and detect
when a file within has been modifed?
Thanks,
Ron Vecchi
