Yes, what I do is name all my fields with the prefix fld, and my labels with 
lbl. This way I can distinguish between editable fields I created and things 
like, oh say, Datagrid fields. 

Bob


On Oct 26, 2011, at 2:43 PM, Ken Ray wrote:

> 
> On Oct 26, 2011, at 11:19 AM, Bob Sneidar wrote:
> 
>> Yes, you will need to write your own initialization routine. I do this 
>> anyway in all my forms because I read data into the fields, and then 
>> validate before writing them back to my storage. I always want to make sure 
>> I do not have any random data from a previous edit session making it's way 
>> into my database. Usually I have a populate handler that when passed empty 
>> for the arguement instead of a string or array, it puts empty into all my 
>> fields. Then I just call the populate handler when I open the form, 
>> typically in preOpenCard. 
> 
> 
> One thing to be careful about - NEVER do this (unless you are 100% sure):
> 
> on preOpenCard
>  repeat with x = 1 to the number of fields
>    put empty into field x
>  end repeat
> end preOpenCard
> 
> It seems reasonable, but what it will do is to empty out your label fields as 
> well, which can be a real PITA to put back again. It's always better (IMHO) 
> to either address the fields you want to clear *directly*, like:
> 
> on preOpenCard
>  put "FirstName,LastName,Age" into tFields
>  repeat for each item tField in tFields
>    put empty into field tField
>  end repeat
> end preOpenCard
> 
> OR, set some kind of custom property on the fields you want to clear (or 
> protect), or at least make sure you walk carefully on fields that have their 
> lockText turned on (which is what label fields have by default), like:
> 
> on preOpenCard
>  repeat with x = 1 to the number of fields
>    if the lockText of field x is false then
>      if the short name of field x is not among the items of "PrefilledField, 
> DefaultCity" then
>        put empty into field x
>      end if
>    end if
>  end repeat
> end preOpenCard
> 
> Just my 2 cents…
> 
> Ken Ray
> Sons of Thunder Software, Inc.
> Email: k...@sonsothunder.com
> Web Site: http://www.sonsothunder.com/        
> 
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