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pascal programming problem

text pascal

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3 replies to this topic

#1 rrwe


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Posted 19 December 2012 - 07:20 AM

Please take a look: https://www.dropbox....14b3/n9TefWkzVD
I've tried many times but still it fails to show the statement 'Sorry! You are under 18 so cannot join this voting event.'

Also, the ID numbers that entered won't save into the text file. The voting record won't be updated if success entering the correct data.

Can anyone help me? urgent! Thanks a lot!

#2 WingedPanther73


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Posted 19 December 2012 - 12:30 PM

Do you have a problem statement? Can you state what you expect to happen and what actually happens?

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#3 rrwe


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Posted 21 December 2012 - 07:20 AM

I've modified a bit : https://dl.dropbox.c.../76573190/2.pas


id.txt is a text file which stores id numbers.
Here's some examples for valid id numbers: F1234567, A2041637
In the program code, the procedure which named "InsertID", is used to insert the ID numbers which satisfy the requirement of ID number.
However, it cannot save any ID numbers after entering the valid ID numbers and quit the program.
How can I fix these problems?
Thanks for your help!

Edited by rrwe, 21 December 2012 - 07:20 AM.

#4 Luthfi


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Posted 21 December 2012 - 10:35 AM

I believe that was caused by you did Rewrite in SaveID procedure without previously calling AssignFile.

Looked like you assumed that the result of prior AssignFile you called in OpenOrCreateDB2 will be maintained after a call to Close - you did this in InputID. But it does not. After you Close a file, the relationship between a file variable and the "real" file will be terminated. So you need to AssignFile again.

Edited by LuthfiHakim, 21 December 2012 - 10:37 AM.

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