Delphi Programming question

I have created a text file on F: the lan drive. Everynight I have to run a program which should rewrite this file. I do not have delete access on F: I can however erase the contents of the file, with which I am not having any luck. If I use reset procedure, the file is put in read-only mode. If I use append it is write only but I cannot loop until Bof to whitespace the previous records. I cannot use rewrite, erase or truncate as I get I/O errors on these procedures as I do not have rights to delete any file on F: How can I open my text file, loop through it to whitespace any records and then append the new data. This text file is being populated from some list boxes on my form.
Please help if you can.
Thank you
 Sam Kapoor
skapoor072897Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

jackb022197Commented:
AssignFile(f, 'F:\yourfile.txt');
FileMode := 1;      { Write only }
Reset(f);

Then loop through your file and append...


0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
skapoor072897Author Commented:
I have tried this bit of code, but I keep running into the same problem. First I define f as a file type variable. This is the code
egin
  AssignFile(f, 'f:\cmailtest\phone.txt');
  FileMode := 1; { Write only }
  Reset(f);
  while not eof(f) do
   begin
    writeln('     ');
   end;
On the writeln('      ') line I get an I/O error 103.
I have changed the variable f: to a textfile type and tried the sam e code with writeln(f,'      '). Same I/O error 103. I have tried writing to C instead of F but get the same I/O error. Maybe something is not write with the writeln statement. How do I write out whitespaces to this text file.
Please help if you can.
Thanks,
           SKapoor
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Delphi

From novice to tech pro — start learning today.