Lock file

Collapse
This topic is closed.
X
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • macneed
    #1

    Lock file

    Can i lock a file in c#,
    that i can move it and del it,
    but other program don't have right to access(read) until i release it?

    i read fileshare.none, but can't delete it without close the filestream or
    streamwriter
    there was still a cocurrency problem if i close the stream and delete it
    just after close
    what can i do?


    Tags: None
    • Peter Duniho
      #2
      Re: Lock file

      On Tue, 26 Aug 2008 03:21:20 -0700, macneed <macneed@yahoo. com.hkwrote:
      Can i lock a file in c#,
      that i can move it and del it,
      but other program don't have right to access(read) until i release it?
      >
      i read fileshare.none, but can't delete it without close the filestream
      or
      streamwriter
      there was still a cocurrency problem if i close the stream and delete it
      just after close
      what can i do?
      As far as I know, nothing. The file API just doesn't work that way. You
      can assert exclusive access only while you have the file open, and you can
      move or delete the file only while the file _isn't_ open.

      If you want your application to have exclusive move and delete rights for
      the file, you need to do that at the file security attributes level. Your
      application would have to run as a user that is exclusively granted those
      rights in the file's access control list.

      Pete

        Comment

        • Pavel Minaev
          #3
          Re: Lock file

          On Aug 26, 2:21 pm, "macneed" <macn...@yahoo. com.hkwrote:
          Can i lock a file in c#,
          that i can move it and del it,
          but other program don't have right to access(read) until i release it?
          >
          i read fileshare.none, but can't delete it without close the filestream or
          streamwriter
          there was still a cocurrency problem if i close the stream and delete it
          just after close
          what can i do?
          I don't see why you'd want to forbid other processes from deleting
          your file while you're working with it. Deletion will not delete the
          actual data for as long as the file remains open - so, if another
          process requests to delete the file, it will become invisible, but
          your program can finish doing whatever it was doing with it. When you
          close your file handle, the file will be physically deleted.

            Comment

            Previous template Next
            Working...