How to resume file which has been incompletedly uploaded or downloaded through ftp, by using C#

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I have a scenario in which a file using ftp is being downloaded or uploaded. But during the process, i want to manually stop copying process.

Whenever I manually stop process (by stopping the ftp service from IIS), it stops the process and also rolls back the file (means deletes the partially copied file).

Questions are:

1) How to stop copying process in a way such that partially copied file will not remove?

2) How to continue (resume) the copying process from the remaining part?

Any help will be appreciated and thanks in advance.

Posted 16-Jun-11 3:41am

ham_gr80

Updated 16-Jun-11 3:54am

v3

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Ciumac Sergiu · Answer 1 · 2011-06-16T03:52:00

Solution 1

Hi,
in order to implement the resume functionality in a client which uses the FTP protocol, you should take a look on REST command which is specifically designed for this task. Here[^] you can find the RFC with the appropriate description.
Regards

Posted 16-Jun-11 3:52am

Ciumac Sergiu

Comments

Sergey Alexandrovich Kryukov 16-Jun-11 15:00pm

My 5.
--SA

[no name] 17-Jun-11 1:43am

Thanks for your early response, now i am using a library based on REST. But still not found the way. Because the library which i am using is based on Socket. Whenever i open the socket it throws an exception. Is there another way?

Thanks in advance.