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Posted to user@struts.apache.org by Adam Lipscombe <ad...@expensys.com> on 2006/03/29 18:56:04 UTC
How to restrict number of chocies in multiple html:select
Folks,
With an <html:select .. multiple="true"> is it possible to restrict the
number of selections that can be made?
To say 2 or 3?
OK I could validate the number selected in the actionform or in javascript
but I would really like to tell the combo box to only allow N selections.
TIA -Adam
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Re: [OT] Re: How to restrict number of chocies in multiple html:select
Posted by Dave Newton <ne...@pingsite.com>.
Dave Newton wrote:
> Adam Lipscombe wrote:
>
>> OK I could validate the number selected in the actionform or in javascript
>> but I would really like to tell the combo box to only allow N selections.
>>
>>
> AFAIK this is completely browser-controlled as it's a standard HTML
> select tag. You would need to use JavaScript.
>
Whoops, meant to add that you could validate server-side by looking at
the length of the array and writing a custom validator (one may already
exist for this; I don't recall).
But I don't believe that HTML supports a "max number of selections"
attribute.
Dave
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[OT] Re: How to restrict number of chocies in multiple html:select
Posted by Dave Newton <ne...@pingsite.com>.
Adam Lipscombe wrote:
> With an <html:select .. multiple="true"> is it possible to restrict the
> number of selections that can be made?
> To say 2 or 3?
>
> OK I could validate the number selected in the actionform or in javascript
> but I would really like to tell the combo box to only allow N selections.
>
AFAIK this is completely browser-controlled as it's a standard HTML
select tag. You would need to use JavaScript.
Dave
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