How to be confirm is a file editable or not

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I have to check a file with the file path. Is there any way to get the user permission granted or not for that particular file path? In generally, can i get any information is the file is editable or not using C# code?

Posted 16-Dec-11 20:55pm

labshasanbd

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labshasanbd 17-Dec-11 5:39am

There are many users "My Documents" folders in my PC. When i am trying to execute File.Exists(filename) it returns false though it presents there for that user. Can i make a decision from here, that it's not editable/accessible?

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OriginalGriff · Answer 1 · 2011-12-16T21:13:00

The only way to absolutely check if a file can be edited is to open a stream for read/write, within a try...catch block. If you don't get an exception, it is editable. Remember to Close and Dispose the stream immediately you are finished checking, or it will not be available because the check code has locked it!

However, that does not stop the file becoming unavailable immediately afterwards! (In fact, in some systems, it may make it more likely top be in use afterwards, as some backup systems watch for file access and immediately grab the file for backing up...

thatraja · Answer 2 · 2011-12-16T21:14:00

Solution 2

Check the file is readonly[^]

Posted 16-Dec-11 21:14pm

thatraja