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How can we deselect options in html dynamically (using javascript)

when i used the statment
for(var i = 0; i < menu.length; i++)
{
menu.options[i].selected = "false";
}

to deselect all the options within a list, it surprisingly selected all
the options. I tried another option like

menu.options[i].removeAttribut e("selected") ;

it also didnt work without any error message.

what would be the solution of this problem. i want to deselect all the
options of a list dynamically.

Mar 8 '06 #1
2 11428
VK

ahmad wrote:
when i used the statment
for(var i = 0; i < menu.length; i++)
{
menu.options[i].selected = "false";
}

to deselect all the options within a list, it surprisingly selected all
the options. I tried another option like

menu.options[i].removeAttribut e("selected") ;

it also didnt work without any error message.

what would be the solution of this problem. i want to deselect all the
options of a list dynamically.


AFAIK select-multiple requires physical user interaction (Ctrl+Click
etc.) to make multiple selections. This interface is not
programmaticall y exposed - it's part of interface protection.

Together with your other post (styling separate select options) I would
suggect either to change the whole concept (whatever it is right now)
or to use a DHTML widget instead of conventional <select>.

Mar 8 '06 #2
On 08/03/2006 09:24, ahmad wrote:
when i used the statment
for(var i = 0; i < menu.length; i++)
{
menu.options[i].selected = "false";
}

to deselect all the options within a list, it surprisingly selected all
the options.


The selected property is a boolean, and /any/ non-empty string
type-converts to true. So, that assignment might as well have been:

menu.options[i].selected = true;

[snip]

Hope that helps,
Mike

--
Michael Winter
Prefix subject with [News] before replying by e-mail.
Mar 8 '06 #3

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