Morten,

Thanks for your reply, I understand what you're doing in the code, but isn't
reading line by line slow ?
The file is over 64mb in size, reading it line by line to do a search seems
like a lot of overhead, especially when the user does many searches while
running the app, it would mean reading/searching the >64mb file many times,
that's why I opted to keep the file in memory which might not be the best
idea.
I'm currently trying to get some more time from my client to try and
optimize by creating an index of the file (which doesn't change that often)
and searching through that and retrieving part of the text-file
corresponding to the index...

Jurjen.

Hi Jurjen,

Sounds to me like you could just use a ReadLine() and do a search per
record.  You should use the encoding used in the file.  If you don't
specify an encoding, UTF-8 is used.  You would need some logic added to
keep track of an entire recordset, which can be a string[] of length 9

            StreamReader sr = new StreamReader("", Encoding.Default);
            string s = null;
            string[] recordset = new string[9];
            int index = 0;

            while ((s = sr.ReadLine()) != null)
            {
                int i = GetRecordNumber(s);

                if (i >= (index + 1))
                    ;// missing record

                recordset[index] = s;

                index++;

                if (i == 9) // complete record
                {
                    if (SearchRecordSet(recordset))
                        return true;

                    Array.Clear(recordset, 0, 9);
                    index = 0;
                }
            }

PS! Your system clock is a bit too fast

On Wed, 11 Oct 2006 09:01:00 +0200, Jurjen de Groot <info@gits-online.nl>
wrote: