Hi and thanks for the suggestions -
You seem to be saying:
single - the user should click on "select one" to NOT select
ANY - when it's normal semantics is to force the user to selects one?
multiple - if 10 things are selected and you want to unselect 1,
you need to unselect all 10, remember 9 and and start over again?
Am I misinterpreting?
I was hoping for something simpler/cleaner like - clicking on an entry
currently selected unselects it; clicking on it again, reselects it.
On Saturday, May 25, 2019 at 12:25:18 PM UTC-7, villas wrote:
>
> *Multiple = False*
>
> IS_IN_SET(['a', 'b', 'c'], zero=T('choose one'))
> To unselect, click 'choose one' instead of whatever was selected.
>
> *Multiple = True*
> Unselect/remove everything which was previously selected.
>
> ...then submit the form.
>
>
> On Saturday, 25 May 2019 01:32:23 UTC+1, jim kaubisch wrote:
>>
>> old posting, but have a related question -
>>
>> In a form dropdown, certainly multiple but probably under some
>> circumstances single, how do I un-select a previous choice without choosing
>> an alternative? Simple example is - currently I have chosen 3 elements of
>> the list, a, b, c and now want to unselect b without choosing an
>> alternative. i.e. I want the resulting list to be a,c (or even empty if I
>> unselect all three), but I see no way of doing that. The "single" case is I
>> have made a choice, now want to undo that choice, i.e. end up with an empty
>> list
>>
>> Am I missing something obvious?
>>
>> Thanks
>>
>> On Wednesday, January 30, 2013 at 2:41:16 AM UTC-8, Thomas Bellembois
>> wrote:
>>>
>>> Hello web2py community,
>>>
>>> I have a multiple select widget:
>>>
>>> db.PRODUCT.class_of_compounds.requires=[IS_EMPTY_OR(IS_IN_DB(db,
>>> db.CLASS_OF_COMPOUNDS.id, label=db.CLASS_OF_COMPOUNDS._format,
>>> multiple=True, sort=db.CLASS_OF_COMPOUNDS.label, zero='choose'))]
>>>
>>> The "zero" field does not appear. If I change multiple from True to
>>> False it appears.
>>> I have probably missed something in the documentation...
>>>
>>> How can a user then unselect an item ?
>>>
>>> Regards,
>>>
>>> Thomas
>>>
>>
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