How to Monitor FTP files by c#

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I just want to know there whether are any new files in the FTP site, and if a new file be uploaded in the FTP site, then I will download this file to local system. Could someone give me some suggestions?

Posted 27-Mar-12 4:13am

eng.rania

Updated 27-Mar-12 4:17am

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eng.rania 27-Mar-12 10:46am

can i use FileSystemWatcher to monitor FTP files?

3 solutions

Solution 1

a FileSystemWatcher maybe?
http://msdn.microsoft.com/en-us/library/system.io.filesystemwatcher.aspx[^]

Posted 27-Mar-12 4:19am

Wes Aday

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eng.rania 27-Mar-12 10:41am

thanks for your answer, but I need to watch the change on ftp files not in my local system.

[no name] 27-Mar-12 14:40pm

That you are not hosting the FTP server is kind of need to know information

Sergey Alexandrovich Kryukov 27-Mar-12 12:46pm

True, you cannot do it from the remote system through FTP.
--SA

Sergey Alexandrovich Kryukov 27-Mar-12 12:54pm

However, I explained an alternative which can be used in addition to FTP (or instead of it), please see my answer.
--SA

Wonde Tadesse 27-Mar-12 19:53pm

5+. Somehow it helps

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Espen Harlinn · Accepted Answer · 2012-03-27T10:17:00

Solution 3

This is just some extra info related to SAKryukovs' excellent answer.
FileSystemWatcher has some quirks that John Simmons uncovers in the following articles:
FileSystemWatcher - Pure Chaos (Part 1 of 2)[^]
FileSystemWatcher - Pure Chaos (Part 2 of 2)[^]

Best regards
Espen Harlinn

Posted 27-Mar-12 10:17am

Espen Harlinn

Comments

Wonde Tadesse 27-Mar-12 19:54pm

5+. Good CP reference.

Espen Harlinn 28-Mar-12 4:04am

Thank you Wonde :-D

VJ Reddy 12-Jun-12 11:07am

Good references. 5!

Espen Harlinn 12-Jun-12 11:09am

Thank you, VJ :-D

Sergey Alexandrovich Kryukov · Accepted Answer · 2012-03-27T06:53:00

Please see Solution 1 and my comment to it. You are right, you cannot do it. FTP is not designed the way to make it possible. Therefore, you can do it only if you use yet another service on your computer hosting the file in question.

If this is Windows OS, you can develop some Windows Service working by subscription. If a client of the service is subscribed by connection to the server, it can also pass the data on what part of file system. Internally, the service should use FileSystemWatcher and itself subscribe to the required events.

Please see my past answer to get an idea of such service:
Multple clients from same port Number[^].

For development of Windows Services, please start here:
http://msdn.microsoft.com/en-us/library/d56de412%28v=vs.100%29.aspx[^].

—SA

How to Monitor FTP files by c#

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