I Am Using Windows Service In C# And I Want To Perform Some Specific Tasks When A Particular Directory(File) Is Opened ? Somewhat Like Password Protection To The Folder , What Can I Do ?

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C#

Windows

service

COULD THAT BE DONE USING FILESYSTEM WATCHER ? IF YES , HOW ? IF NO THEN WHAT ELSE TO DO ?

Posted 18-Aug-14 0:58am

keyur chauhan

Updated 18-Aug-14 0:59am

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keyur chauhan 18-Aug-14 9:17am

is it that hard ?? just to check if a particular directory was just opened or not ? cause even i've been google-ing it for last 4-5 hours but still cant find any convenient source

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Garth J Lancaster · Answer 1 · 2014-08-18T01:09:00

Solution 1

yes, FileSystemWatcher may help you - there are plenty of articles around on how to use it - the biggest issue is catching multiple events for one file - and you may need to wait until the opening application has finished/closed the file, so you may need a delay

AND STOP SHOUTING !! all caps is rude

Posted 18-Aug-14 1:09am

Garth J Lancaster

Updated 18-Aug-14 1:12am

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keyur chauhan 18-Aug-14 7:28am

i have checked all the properties and events of filesystem watcher but could not find a way through !!

Garth J Lancaster 18-Aug-14 8:12am

sorry - I see your point - having trawled through the docco, detecting file opened is pretty near impossible using an api - even ReadDirectoryChangesW wont do it

how about this .. if its always the same directory, at time-0, get and store a list of files and their last-modified timestamp. At time-n where n is a delay you might have to experiment with, scan the directory, compare the last modified dates with the list from time-0, and if a last modified date has changed, its (a possibility) that the file has been opened

keyur chauhan 18-Aug-14 8:35am

yess the folder is the same , but the thing i want to do is , when a user tries to open that folder say @c\desktop\temp he should get a pop up windows asking for a correct password ,meanwhile that folder should be locked , and if the user enters the correct password the folder is unlocked and opened up .
Google says i should try shell extensions but i am kinda non-familier with those things