lol, well yes but then that would be attempting to break the input device on  
real radios.  Funnily we must be twins because as a kid I used to try to do 
that too.  I broke so much stuff...



On 8 Jun 2010, at 05:39, Lucien Stals wrote:

> And I seem to recall that the old radios on which the metaphor is based could 
> be pushed half in. That would cause all buttons to pop out thus having *no* 
> selection. Not saying that as a justification for having no selection in a 
> radio group. Just pointing out that the metaphor wears a bit thin ;)
> 
> Lucien.
> 
> 
> On 08/06/2010, at 11:38 AM, Ben Buchanan wrote:
> 
>> 
>> 
>> On 7 June 2010 14:58, Steve Gibbings <st...@stevegibbings.co.uk> wrote:
>> I have a problem with that.   Radio button sets should always have an option 
>> selected, there is no undefined selection.  This makes sense when you 
>> remember where the radio button metaphor came from. However seems that 
>> doesn't get universally implemented.
>> 
>> Technically correct, true. Would you recommend a checkbox instead, or some 
>> other option?
>> 
>> In practice I think the usage of radio buttons has shifted to accommodate 
>> sets with no initial selection. In usability terms it's probably better than 
>> a dropdown for a yes/no; and some people do have some issues with the 
>> implied off state of checkboxes. Compare it with a paper form where you have 
>> two boxes and you tick or cross an option - there's no preselection. I guess 
>> it depends which paradigm is more likely to fit the scenario.
>> 
>> cheers,
>> Ben
>> 
>> 
>> -- 
>> --- <http://weblog.200ok.com.au/>
>> --- The future has arrived; it's just not 
>> --- evenly distributed. - William Gibson
>> 
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