I was afraid that custom validation was going to be the answer... This page
has about 300 lines of Javascript field validation code. I was hoping to use
Validate to eliminate that code.



Of course if all the multiple select fields have the same Default value then
I could probably code a general purpose custom validation for the
multiple-select boxes... Hmm... I'll have to think about this one...



Richard W. Schaefer | HTSC Application Development & Maintenance |
860.547.5176





-----Original Message-----
From: somematt [mailto:matthew.a.frank@...]
Sent: Thursday, February 10, 2005 9:17 AM
To: validation@yahoogroups.com
Subject: [validation] Re: Multiple Select List




the code for determining the value of a select-multiple:

**************************************
case "select-multiple" :
for(var i=0,iOptions=element.options.length; i<iOptions; i++)
if(element.options[i].selected &&
trim(element.options[i].value.toString())){
returnValue=true;
break;
}
break;
**************************************

if there is at least one option selected that has a non-empty value,
the control will pass required validation. if you want to include 0
as an empty value, you can alter the logic in your copy of the script
or you can create a custom onvalidate handler that accomplishes the
same thing.



--- In validation@yahoogroups.com, "rschaeferiii"
<Richard.Schaefer@t...> wrote:
>
> I have an input field in a form that is <SELECT MULTIPLE
> NAME="mslist" REQUIRED="on">. If I fill in the form and Submit it I
> don't get any validation error that nothing was selected. Could this
> be because the default ("empty") first entry is "selected"? If so is
> there a way to check that at least one entry is selected AND the
> value is <> "" (or <>0 depending on the list...).
>
> I'm running v3.1.4.








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