Without seeing your code, I'd assume that you're opening the file
outside of the "Run" subroutine and just reading the data in that
subroutine.  If this is the case, what you want to do is open the file
at the start of the subroutine, read the data, then close the file at
the end of the subroutine.  This way, it will be opened, read, and
closed each time "Run" is clicked.

On 1/7/07, Guojun Yang <[EMAIL PROTECTED]> wrote:



Hi, All,

I am trying to make a window with a "Run" botton. After click, it inports
text from a file and, after manual manipulation of the text data in the
textbox, it produces a graph using the text of the box. Then the graph will
be displayed on the same window. It runs only on the first time I click
"Run". When I click "Run" again after the first click, an error was returned
basically saying the file reading pointer is at the end of the file, so no
calculation is performed. Can anybody give me a hint on this?

Thanks a lot,

Guojun
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