Testing for numerics

[Mark Schonewille]

Hi Francis,

Perhaps your field doesn't contain a number with a length of 4? I  
tried this in the message box:

   put matchtext("1234","[0-9][0-9][0-9][0-9]")

and got true returned.

Best,

Mark

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Op 30-sep-2006, om 20:56 heeft Francis Nugent Dixon het volgende  
geschreven:

> Hi from Paris,
>
> I may be totally dumb, but I am not sure how to use
> MatchText. I find the explanation in the on-line doc.
> particularly obscure .....
>
> I want to check the contents of a field for numeric,
> so, for a field of four characters, I coded :
>
>  matchText(field MyTextField,"[0-9][0-9][0-9][0-9]")
>  if it is true then ......
>
> Is this the right way to check for numerics, and if
> so, what have I done wrong ?
>
> -Francis
>
> "Nothing should ever be done for the first time !"