Re: [PHP] Dynamic dropdown lists (select)

After reading the rest of the conversation, I think the best solution is the
next thing:
First, if I got this correct, you can extract the makes select-element from
the mysql using a query? if so, then extract it and host is in a temp
variable.
The next thing is writing down a js code, that contains an array of models
for each make. Personally, I'd use a 2 dimension array, the first dimension
for the make id/name and the second for the model id/name.
The 2 dimm. array you write with something like


echo '<script type="text/javascript">var whatever = new Array();';
foreach ($cars as $idx => $car)
echo 'whatever['.$idx.'] = "'.$car->getName().'";';
echo '</script>';


as Zoltan said.
Then you have just simplefied it to a JS based script, i think this is the
best way you will figure out which does NOT contains AJAX, only static JS ;)

HTH,
Nitsan

On 04/04/2008, Nathan Nobbe <quickshiftin@xxxxxxxxx> wrote:

On Fri, Apr 4, 2008 at 1:11 PM, Daniel Brown <parasane@xxxxxxxxx> wrote:

On Fri, Apr 4, 2008 at 9:33 AM, Ryan Yagatich <ryagatich@xxxxxxxxxx>
wrote:
Angelo Zanetti wrote:
> Hi all,
>
> I am looking at options for creating a dynamic dropdown list.
<snip>


> Is there any other idea or thing I can do? Im thinking maybe AJAX
but
this
> is for a mobile site (WAP/xHTML) site and Im not sure if the
functionality
> will work on these devices.
>
>
You're pretty limited to the use of JavaScript here, and even more
limited to what you can do with it. For instance, JS works on the
Treo
700p just fine - but when you get to making HTTP requests through JS
(AJAX and related talk goes here) - they refuse to execute. (The 700p
uses Blazer 4.5 web browser):
http://en.wikipedia.org/wiki/Blazer_(web_browser)<
http://en.wikipedia.org/wiki/Blazer_%28web_browser%29>

For posterity's sake (and an FYI), I'll point out that Internet
Exploder on the Treo 700wx does have a JavaScript parsing engine, but
does *not* handle AJAX very well at all.

I know this comes as a big surprise that a Microsoft product is
lacking when compared to another.


im not a fan of this technique on full-blown web browsers, but in this
case
it sounds like a workaround is called for. you could just handle the
onchange event on the the select element and submit the form to the server
for a full page refresh.
eg.

<form id="ddlForm" method="post" action="">
<select onchange="document.getElementById('ddlForm').submit()">
<!-- options -->
</select>
</form>

you may also consider embedding the form in an iframe to enhance
performance, tho im no expert on the mobile front :D

-nathan

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