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Warning: A non-numeric value encountered in /web5/aldweb/www/aldweb_com/www/thread.php on line 257
 Sujet n° 987 |
Negative numbers in NUMFIELD |
le 21/11/2004 @ 17:29
par Chuck
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I can't enter a minus sign in a NUMFIELD. I need to input both positive and negative numbers. How do I do that? |
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Warning: A non-numeric value encountered in /web5/aldweb/www/aldweb_com/www/thread.php on line 497
Réponse n° 1
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le 21/11/2004 @ 18:02
par aldweb
visiteur
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Hello Chuck,
This is a limitation which comes from Palm OS itself. So, there is nothing I can do about it... 
But, there is a workaround. 
Use a TEXTFIELD, and then convert the string result to a numerical value, using VAL (which itself includes some checks to return a valid number). Something like this for example:
N$=FIELD$(#1)
N=VAL(N$)
Or build your own check routine, to check that all characters of N$ are in ["-","0".."9","."]
Cheers,
@+
aldweb |
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Warning: A non-numeric value encountered in /web5/aldweb/www/aldweb_com/www/thread.php on line 497
Réponse n° 2
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le 25/11/2004 @ 22:19
par aldweb
visiteur
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Chuck,
When driving back from work tonight on my motorbike, I thought again about your question (it is already a few days old, never try to understand a brain, especially mine!).
You may also use a standard NUMFIELD with a small BUTTON in front of it.
When you click on the button, it switches from "+" to "-" and you know the sign
Be creative 
Cheers
@+
aldweb |
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Warning: A non-numeric value encountered in /web5/aldweb/www/aldweb_com/www/thread.php on line 497
Réponse n° 3
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le 26/11/2004 @ 05:21
par Chuck
visiteur
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Thanks for the idea. I already have an associated checkbox I can use for this purpose. |
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