Reading parameters lists from a text file

Hi All,
Using CR XI R2 with VB6  and external .rpt files - - - - -
In a VB6 app I use VB to loop through my tables to create dynamic parameter lists (CR XI is limited to the number of parameters it can create from the table). This works well but each time the user refreshes the report the same code is run to re-create the parameter list which is redundant and slows down the report(s).
Is it possible to manually create a series of text files - say each morning - and then read the parameter lists from the text file(s) at runtime instead of doing it on the fly each time?
Thanks in advance!
Peter Tyler
Geneva - Switzerland

I find this sentence confusing:
Is it possible to manually create a series of text files - say each morning - and then read the parameter lists from the text file(s) at runtime instead of doing it on the fly each time?
Typically, runtime means on the fly - I think...
So, I'm not sure if you are trying to read a saved data report and filter that saved data so that you do not have to hit the database(?).
Creating a text file is beyond the support of this forum, though that should be a trivial exercise. Reading a text file and passing the results to a parameter is the same thing you are doing already, so I'm not sure where the hang up would be here(?)
Or - rather than creating a text file, why not create a temp table and query it as you do when you loop through the tables to create dynamic parameter lists(?).
I'm pretty lost here...
Ludek
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    wrote:
    You are using buffered reads and writes I would assume, right? Also, how do you think most programs handle this sort of thing? I don't believe I'm using buffering.
    My code looks something like this
    //...necessary imports
    //then
    Scanner inFile = new Scanner (new file("filename1.txt"));
    PrintWriter outFile = new PrintWriter ("filename2.txt");
    //then stuff like
    int x = inFile.hasNextInt();
    outFile.println(x);
    camickr wrote:If you are changing the data "in place", that is none of the data in the file is shifted, then you can use a RandomAccessFile.
    Otherwise, you've been given the answer above.What is RandomAccessFile? Is it what I have a link to? Basically what I do is I write a bunch of numbers to a txt file and then change the numbers I don't need anymore to 0. So say I had 0 1 2 3 4 5 6 7 etc. I would like to to open the txt file and change every second one to 0 so then I'd have only odd numbers and 0s.
    I looked at the documentation for RandomAccessFile and it seems like it might be what I need.
    Thankyou both for your help so far. I took a java course in high school and they only taught me one way to get data from text files and that is what I just showed you. So maybe this questions are really stupid. lol
    Edited by: qw3n on Jun 13, 2009 7:46 PM

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