Limiting data entry in fields

Devin Asay devin_asay at byu.edu
Mon Nov 29 17:38:02 EST 2010


Charles,

Did you see my earlier post? There are two examples in the LiveCode Resource Center that describe exactly how to do this.

See the LiveCode Resource Center (Help menu > Resource Center). Then look under Sample Scripts > Text. There are two sections there that will help you, one on limiting the number of characters and one on limiting input to only numbers.

Regards,

Devin

On Nov 29, 2010, at 3:27 PM, charles61 wrote:

> 
> Mike,
> 
> I have not thought of using "not in". I did not use "1234567890" because it does not limit decimals.
> 
> Charles Szasz
> cszasz at mac.com
> 
> 
> 
> 
> On Nov 29, 2010, at 5:22 PM, Mike Bonner [via Runtime Revolution] wrote:
> 
>> Is there a reason to use 'not in "1234567890"' rather than 'is a number' 
>> just curious to know. 
>> 
>> On Mon, Nov 29, 2010 at 3:13 PM, Andrew Kluthe <[hidden email]> wrote: 
>> 
>>> 
>>> Inside of the field script put something like this: 
>>> 
>>> on keyDown pKey 
>>> 
>>> put the number of chars of me into sCount 
>>> 
>>> if sCount < 3 then 
>>> 
>>> if pKey is not in "1234567890" then 
>>> 
>>> pass keyDown 
>>> 
>>> end if 
>>> 
>>> end if 
>>> end keyDown 
>>> 
>>> This should make it so that everytime a key is pressed in that field it 
>>> counts how many characters it has, if it is less than 3 it checks to see if 
>>> it is a number or in the allowed list, if so it passes that key. 
>>> 
>>> -- 
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Devin Asay
Humanities Technology and Research Support Center
Brigham Young University





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