just what i was looking for !
thanks for this sample application , i needed this to import some files to SQL Server

I've notice that when I just save a file that the "Changed" event is triggered twice. Any ideas why?

Aside from the change in content, there is a change in attributes (Last Modified date).

Another useful application. Well done, your\'re doing a great job, I find those sample applications very useful to learn how to do various development tasks.

Nice stuff.Greate help in the application I was developing.

great work...easy to understand..keep posting these types of informative and useful articles.

just as info...when i created the solution on network it was giving me an security exception error

Any possibility of triggering the Change event only once instead of twice

Here i want to rename folder by c#.net in asp.net 2.0

is there any solution for it?

thank.

Very nice simple application. Does filewatcher know who is making changes, deletes... to the particular file?

Any thanks.

Hi Andrei Pociu,

I'm a newbie programmer can you teach me how to determine what process created the file or what program read, modified and deleted the file

Thanks so much and more power

Excellent!

I got a similiar program below and it runs well in console. But there is no events generated after I delete or create a folder under the dir. defined in the code. It'll be appreciated if anyone can tell me why. Thanks, Changming
Here is the code;


namespace monitorChange
{
class Program
{
static void Main(string[] args)
{
FileSystemWatcher watcher = new FileSystemWatcher();
watcher.Path = @"c:\";

// Register for events
watcher.Created = new FileSystemEventHandler(watcher_Changed);
watcher.Deleted = new FileSystemEventHandler(watcher_Changed);

// Start Watching
watcher.EnableRaisingEvents=true;
}

// Event Handler
static void watcher_Changed (object sender, FileSystemEventArgs e)
{
Console.WriteLine("Directory changed({0}): {1}", e.ChangeType, e.FullPath);

//Console.WriteLine("File: " e.ChangeType e.FullPath);
}
}

}

Hi all!
I am developing program like this, but i need to detect user who made some changes.Any ideas?

Well Done.
I took a clear idea of FileSystemWatcher.
Thank you very much

I was looking for a similar program, if this is on a shared folder, would it be possible to show the name of the person who modified or deleted the file

Great job dude. thank you very much. this sample application will help me a lot.

Nice job! This was exactly what I was looking for...

really nice job,but can we know what is the process that changed or deleted a file...

EXCELENTE MUCHAS GRACIAS.

I like this article..
I am alreadi working on a project which needs to tack that how many files have been copied to the Watching fodler. I used the Created event, so whenever a file is created in the watching fodler I start further proccessing on that newly created file. This works well with small file. But when I tried to copy some large file (i.e. size in gb) then i got some problem which is that Created event triggerd immediately as soon as the file is created, and my code starts to work on that newly created file. But in case of large file the contents of the file is not written in the file yet and so I get exception in my code. Basically I need to know that how to make sure in Created event of the Filewatcher that the file which is just created is completely copied?

If you are shahid riaz, former employee of Streaming Networks then contact me, i will explain the details what you required.

Thanks heaps for this tutorial. It works perfectly against my local hard drive, but it doesn't pick up any events at all for a mapped network drive. Is there any way to get this functionality into this application?

how to align a third party exe or a pop up window
on a screen in c#

If the event Changed is threw a text file:
How I can see new the change????
(Before and After)
Thanks

i have to use FileSystemWatcher class in asp.net plz help me how to use??? is there any object we can use for FileSystemWatcher in asp.net(c#)(VS2008)

am searching for the same kind of program..,pls could you able to help me in retrieving deleted files and to dump the RAM memory

Great Job.

Instead of getting changed file update in the text box, can I setup as email?

According to my script, I get email when I click on Monitor button but not when the file data actually get changed.....

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Mail;
using System.IO;

namespace FileMonitor
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void fileWatcher_Changed(object sender, System.IO.FileSystemEventArgs e)
{
txtLog.Text = e.ChangeType ": " e.FullPath "\r\n";
txtLog.Focus();
txtLog.Select(txtLog.TextLength, 0);
txtLog.ScrollToCaret();
}

private void fileWatcher_Created(object sender, System.IO.FileSystemEventArgs e)
{
txtLog.Text = e.ChangeType ": " e.FullPath "\r\n";
txtLog.Focus();
txtLog.Select(txtLog.TextLength, 0);
txtLog.ScrollToCaret();
}

private void fileWatcher_Deleted(object sender, System.IO.FileSystemEventArgs e)
{
txtLog.Text = e.ChangeType ": " e.FullPath "\r\n";
txtLog.Focus();
txtLog.Select(txtLog.TextLength, 0);
txtLog.ScrollToCaret();
}

private void fileWatcher_Renamed(object sender, System.IO.RenamedEventArgs e)
{
txtLog.Text = e.ChangeType ": " e.OldFullPath " renamed to " e.FullPath;
txtLog.Select(txtLog.TextLength, 0);
txtLog.ScrollToCaret();
}

private void btnMonitor_Click(object sender, System.EventArgs e)

{
btnStop.Enabled = true;
fileWatcher.EnableRaisingEvents = true;
MailMessage msg = new MailMessage("xxx@gmail.com", "xxx@gmail.com");
msg.Subject = "Email Test";
msg.Body = "Submitted By: xxx";
msg.Body = "Alert";
msg.From = "xxx@gmail.com";
msg.To = "xxx@gmail.com";
SmtpClient SmtpMail = new SmtpClient("localhost");
SmtpMail.Host = "smtp.gmail.com";
SmtpMail.Credentials = CredentialCache.DefaultNetworkCredentials;
SmtpMail.Port = 576;
SmtpMail.Timeout = 50000;
SmtpMail.EnableSsl = true;
SmtpMail.Credentials = new System.Net.NetworkCredential("username", "password");

try
{
SmtpMail.Send(msg);
}

catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}


btnMonitor.Enabled = false;

}

private void btnStop_Click(object sender, EventArgs e)

{
btnMonitor.Enabled = true;
btnStop.Enabled = false;
fileWatcher.EnableRaisingEvents = false;
}

private void btnFolderTree_Click(object sender, EventArgs e)
{
DialogResult result = ofdOpenFile.ShowDialog();
if (result == DialogResult.OK)
{
txtPath.Text = Path.GetFullPath(ofdOpenFile.FileName);
}

}

private void Form1_Load(object sender, EventArgs e)
{

}
}
}

hi jig..,
just write a function for sending mail and call them from tha file watcher function after writting to the log file and pass the content of the logfile as arguments to mail function..,

Well, In this post I have asked a question that how to handle large file in case of Filwwatcher and atthat time i didnt get reply, and anyhow i fugured it out that how to handle large file.
I have shared my solution on the following link. It might help someone else:

http://www.shahidriaz.com/post/2009/05/25/FileSystemWatcher.aspx

Use System.Windows.Forms.Cursor.Position to get the cursor position in screen coordinates.I admire the important information you offer within your content. I'll bookmark your web site and have my kids examine up the following typically.

Once you have recreated the problem and captured these steps, you can save them to a file and send it to your support person, who can then open it up and view

Simply want to say your article is as amazing. The clearness in your post is just spectacular and i can assume you're an expert on this subject. Well with your permission allow me to grab your RSS feed to keep updated with forthcoming post. Thanks a million and please keep up the enjoyable work.

Any possibility of triggering the Change event only once instead of twice
http://technews.comli.com

Any possibility of triggering the Change event only once instead of twice
http://technews.comli.com

Any possibility of triggering the Change event only once instead of twice

i am having trouble with this functionality on a networked drive too, it's a nice bit of code for use locally but trying to get it going for a folder on server is a nightmare!

thanks a lot.
very good tutorial...

i am having trouble with this functionality on a networked drive too, it's a nice bit of code for use locally

it's a nice bit of code for use locally but trying to get it going for a folder on server is a nightmare!

thank you sir for your wonderful code...
i really enjoyed it..
now i will get good sleep at night..