I have now found that the random file mode allows me to both read and write data without closing the file, however when I try and write the integer 111 (for example) the file has the character "o", the Ascii code for decimal 111. Any tips on using the random file mode ? --- In [email protected], "testblokepuma" <[EMAIL PROTECTED]> wrote: > OK, so if I open the file as follws, then increment the counter and > write the file back... > > open "pathname" for input lockreadwrite as #1 > input #1, intCount > close #1 > > intCurrent = intCount > intcount = intcount + 1 > > open "pathname" for output lockreadwrite as #2 > print #2, intcount > close #2 > > 1) Would this be correct ? > 2) Does this still not allow another program to access the file > between the input and output operation ? > 3) Can I open the file locked and perform both the read and write > operation before closing the file ? > > Sorry if this is basics, have only ever done stand alone applications > before without any filesharing. > > --- In [email protected], Matt <[EMAIL PROTECTED]> wrote: > > check the read only attribute when you open the file, if it is not set > > set it and open the file. If it is set, keep trying, or throw an > > error. When you are done turn it off. > > > > Matt > > > > testblokepuma wrote: > > > > >I many label programs that all increment a counter on a server (simple > > >text file) for the serial number part of the label. Problem is that > > >two different PC's are managing to open the file at the same time, > > >therefore I am getting duplicate serial numbers (big issue with > customer). > > >How can I get this counter file to restrict access to one user at a > time. > > >Help much appreciated. > > > > > >Kevin > > > > > > > > > > > > > > > > > > > > > > > >'// ======================================================= > > > Rules : http://ReliableAnswers.com/List/Rules.asp > > > Home : http://groups.yahoo.com/group/vbHelp/ > > > ======================================================= > > > Post : [email protected] > > > Join : [EMAIL PROTECTED] > > > Leave : [EMAIL PROTECTED] > > >'// ======================================================= > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > > > > > > > > >
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