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selectmenuchange appending object list only on first event

I have two selectmenus, one of which $('#parent') relates to certain options in the $('#members') menu (related through a data attribute in their HTML). I have a function to limit the choices in 'members' where they relate to the choice selected in the parent menu.
SCRIPT
$("#parent").selectmenu();
$("#members").selectmenu();
var allMembers = $('#members option'); // keep object list of all of the options for the select menu
$("#parent").on("selectmenuchange", function() {
var someMembers = [];
var id = $('#parent option:selected').data('id');
allMembers.each(function() {
if ($(this).data('parent-id') == id) {
someMembers.push($(this))
}
});
$('#members').empty().append(someMembers);
});
At the moment, this works, but only on the first selectmenuchange event - which is odd because using console.log() when the arrays are recreated in the function I can see that the correct have been selected each time, they just don't show in the menu on subsequent changes.
I can't figure out if this is a problem with selectmenuchange or empty().append()
HTML
<select name="members" id="members">
<option data-id="101" data-parent-id="1">Name1</option>
<option data-id="102" data-parent-id="1">Name2</option>
<option data-id="103" data-parent-id="1">Name3</option>
<option data-id="104" data-parent-id="2">Name4</option>
<option data-id="105" data-parent-id="2">Name5</option>
<option data-id="106" data-parent-id="3">Name6</option>
<option data-id="107" data-parent-id="3">Name7</option>
</select>
<select name="parent" id="parent">
<option data-id="1">Parent1</option>
<option data-id="2">Parent2</option>
<option data-id="3">Parent3</option>
</select>

Well the options were changing but it wasn't reflecting in the selectmenu created by plugin. So one of the way is you destroy it and re-initialize the selectmenu as below:
$('#members').html(someMembers).selectmenu('destroy').selectmenu();
DEMO

Instead of selectmenu('destroy') and re-initializing the select menu you can also use selectmenu('refresh'). Refreshing sounds nicer than destroying it each time.
I have updated the fiddle of Guruprasad Rao with the refresh:
fiddle

Hierarchical Select List using jQuery

I have two select list,
Select list 1 contains the Mobile phone brands names
<select name="mobile-phone" class="mobile-phone">
<option value="Select">Select</option>
<option value="Nokia">Nokia</option>
<option value="Samsung">Samsung</option>
<option value="HTC">HTC</option>
<option value="Apple">Apple</option>
</select>
Select list 2 contains the phone type like
<select name="mobile-model" class="mobile-model">
<option value="Select">Select</option>
<option value="Nokia--Lumia-520">Lumia 520</option>
<option value="Nokia--Lumia-620">Lumia 620</option>
<option value="Samsung--Galaxy-s3">Galaxy S3</option>
<option value="Samsung--Galaxy-s4">Galaxy S4</option>
<option value="HTC--hero">Hero</option>
<option value="HTC--one">One</option>
<option value="Apple--iphone4">iPhone 4</option>
<option value="Apple--iphone5">iPhone 5</option>
</select>
My quest is I want to display Select list 2 according to the value users select in Select List 1.
If a user selects Nokia in first selection, then only Lumia phones should be shown in second select list. Like so, for other phones.
When None is selected in First select list, then second select list should not show anything, but still visible without any option (like disabled button).
How can I accomplish this using jQuery?
The JSFiddle I have made from above select list.

I'd suggest:
/* select the select element whose name is "mobile-phone",
assign an event-handler for the 'change' event:
*/
$('select[name="mobile-phone"]').change(function () {
// get the relevant/selected brand-name:
var brand = this.value;
/* find the option elements inside of the select element with
name="mobile-model", enable them all:
*/
$('select[name="mobile-model"] option').prop('disabled', false)
// show them all:
.show()
// filter the collection, to find only those whose value does not start with the brand-name:
.filter(function () {
return !(this.value.indexOf(brand) === 0);
})
// disable those elements:
.prop('disabled', true)
// hide them:
.hide();
});
JS Fiddle demo.
References:
Attribute-starts-with ([attribute^="value"]) selector.
filter().
hide().
prop().
show().

I think you are looking for:
$("#sel2").prop("disabled", true);
$( "#sel1" ).change(function() {
var value = $(this).val();
$("#sel2").prop("disabled", false);
$("#sel2 > option").hide();
$("#sel2 > option[value*='" + value +"']").show();
});
Only I put to selects Id for do the selection by Jquery more easy. Before I disabled the control wating for any selection, and when the first select change only I keep the option that macth with option[value*='" + value +"']".
Live demo here

There is a jQuery plugin that handles this exact case very nicely: http://www.appelsiini.net/projects/chained .

You should consider having two MySQL tables: brand, model. The brand table would just be a list of brands with IDs. The model table would contain a brand column where you input those IDs.
Then you should do a JSON query for the brand selected, and return a select list accordingly.
By doing it this way, you'll have an in depth database that you can call and manipulate in numerous ways.
Alternatively, you could do something like:
$(".mobile-phone").on("change", function(){
var brand = $(this).val();
$("[data-brand]").hide();
$("[data-brand="+brand+"]").show();
});
And do this:
<option data-brand="Nokia" value="...

Create automatic Links from Select List

I have a simple <select> list which I receive via an external API, which can not be changed.
My problem is the following: I want to convert this <select> list into a bunch of regular html links. I want to style the list using CSS in ways which do not work on <select>. I hide the original list with 'display:none'
This:
<select style="display:none;">
<option value="E1">Entry 1</option>
<option value="E2">Entry 2</option>
<option value="E3">Entry 3</option>
</select>
Should be converted into:
Entry 1
Entry 2
Entry 3
How do I achieve this?
I have found an Solution, but it's the wrong way! Create <select> from list - indent child items?

Here is a solution, it can be tested at http://jsfiddle.net/C5S32/44/
var options = '';
$('select').find('option').each(function () {
var
val = $(this).val(),
text = $(this).text(),
i = 1;
options += '' + text + '';
});
$('<div class="test" />').append(options).appendTo('#selectnav');

2 related Multiselect form elements

I want to create 2 multiselect side by side. The first one is populated, but the 2nd is empty. The 2nd gets populated only when I select an option from the 1st one and depends on the value of the 1st one.
I'm thinking the only way to do this is with javascript. Can someone confirm this, and do you know of existing examples.
I'm using jquery, but prefer to not use plugins.
I'm also thinking to use Zend so if an existing component exists that would be great.

Here's a demo
You can easily do this with some DOM manipulation.
HTML
<select id="from" multiple>
<option value="-">King</option>
<option value="9">Queen</option>
<option value="5">Rook</option>
<option value="3">Knight</option>
<option value="3">Bishop</option>
<option value="1">pawn</option>
</select>
<select id="to" multiple>
</select>
javascript
var from = document.getElementById("from");
var to = document.getElementById("to");
from.onchange = function(){
//remove this to allow for duplicates
to.innerHTML = "";
var fromOptions = from.getElementsByTagName("option");
for(var i in fromOptions) {
if (fromOptions[i].selected == true) {
//remove "cloneNode(true)" to simultaniusly
//remove the node from the from list.
to.appendChild(fromOptions[i].cloneNode(true));
}
}
}

recreate an array based on options selected

I need help solving a simple requirement.
<select id="my-select1">
<option value="1">This is option 1 ({myop1}|OP)</option>
<option value="2" selected>This is option 2 ({myop1}|OQ)</option>
<option value="3">This is option 3 ({myop1}|OR)</option>
</select>
<select id="my-select2">
<option value="1">This is option 1 ({myop2}|PP)</option>
<option value="2">This is option 2 ({myop2}|PQ)</option>
<option value="3" selected>This is option 3 ({myop2}|PR)</option>
</select>
<select id="my-select3">
<option value="1">This is option 1 ({myop3}|QP)</option>
<option value="2">This is option 2 ({myop3}|QQ)</option>
<option value="3" selected>This is option 3 ({myop3}|QR)</option>
</select>
See the HTML above, I want to recreate my array:
combo = ["abc-{myop1}-{myop2}", "def-{myop2}"];
INTO
combo = ["abc-OQ-PR", "def-PR"];
based on the selected options.
Another thing to note is that I cannot simply change the value of the options of the select box, meaning to say the HTML is somewhat as it is, if it would help, the only part i can restructure on that HTML is the text content between <option></option>
I'm not sure, but I'm already spending a couple of hrs just to solve this problem. Maybe due to my limited jQuery knowledge.
Please help. thanks

Get the selected values into an associative array:
var pattern = {};
var s = $('select option:selected').each(function(){
var m = /\((.*?)\|(.*)\)/.exec($(this).text());
pattern[m[1]] = m[2];
});
Then you can replace each place holder in each string in the array with the corresponding value:
combo = $.map(combo, function(e){
return e.replace(/\{.*?\}/g, function(m){
return pattern[m];
});
});
Demo: jsfiddle.net/C97ma/

Based on the information you provided I'm don't get it 100% I guess. But whatever you're trying to do, I guess jQuerys .map() and $.map() would help you here.
Like
var arr = $('select').find('option:selected').map(function(index, elem) {
return elem.textContent || elem.text;
}).get();
Demo: http://www.jsfiddle.net/4yUqL/78/
Within the callback you can modify/match the text in any way you want/need. In your case I could imagine you want to use a regular expression to match the selected strings and recreate those somehow.

I figure you're using javascript for combining those (it can be done with PHP also)..
You need references to your selects, e.g. :
<script type="text/javascript">
a=document.getElementById("myselect").options[1];
</script>
This will assign the 2nd option value from the 'myselect' select element to the variable 'a'

To begin with I would change the values in the select box like this:
<select id="my-select1">
<option value="OP">This is option 1 ({myop1}|OP)</option>
<option value="OQ" selected>This is option 2 ({myop1}|OQ)</option>
<option value="OR">This is option 3 ({myop1}|OR)</option>
</select>
<select id="my-select2">
<option value="PP">This is option 1 ({myop2}|PP)</option>
<option value="PQ">This is option 2 ({myop2}|PQ)</option>
<option value="PR" selected>This is option 3 ({myop2}|PR)</option>
</select>
<select id="my-select3">
<option value="QP">This is option 1 ({myop3}|QP)</option>
<option value="QQ">This is option 2 ({myop3}|QQ)</option>
<option value="QR" selected>This is option 3 ({myop3}|QR)</option>
</select>
Now to update your array:
var comboDef = ["abc-{myop1}-{myop2}", "def-{myop2}"];
var combo = ["abc-{myop1}-{myop2}", "def-{myop2}"];
function updateArray() {
combo = comboDef;
for (i in combo)
{
combo[i] = combo[i].replace("{myop1}",document.getElementById("my-select1").value);
combo[i] = combo[i].replace("{myop2}",document.getElementById("my-select2").value);
combo[i] = combo[i].replace("{myop3}",document.getElementById("my-select3").value);
}
}
Of course, this could be done better with proper arrays (if you gave your select boxes the same name you could iterate through them using document.getElementsByName()). The basic idea is the replace though which I trust is what you're looking for.