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 > -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/web2py/4e843503-477b-4d79-8539-392495de32fb%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
