Develop Reference

How to close dropdown on onchange event of selector In iOS6?

I am working on hybrid application with worklight.
When tapping on select control, a native dropdown pops out. Now I have bound onchange event on this select so when I choose any option the event gets fired but the dropdown doesn't fadeout until I tap on the done button.
I have used ('select').blur() to overcome and it is working fine for Android but not for iOS6.
I want to fadeout the dropdown with onchange.
Code:
<select id="myID" onchange="myFun()">;
function myFun(){
$('select').blur();
}
or
function myFun(){
$('#myID').blur();
}
What are the possible soultions for it? Thanks.

It seems that in iOS you cannot use .blur() on a select element, the event will be ignored.
Note: in iOS the user is expected to tap the Done button. Why confuse your end-user by introducing unexpected interaction and behavior (= not provided by the OS to begin with). For example, what if the user selected by mistake? Instead of being able to correct on the spot, s/he will be forced to tap again and select again... I recommend leaving it with the default behavior.
Updated example: instead of removing the select from the DOM and re-introducing it, I've found this.
The below works only in iOS6, though, per the question. It doesn't work in iOS7.
HTML
<div id="mySelectDiv">
<select id="mySelect">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="mercedes">Mercedes</option>
<option value="audi">Audi</option>
</select>
</div>
Selected option: <input type="text" id="selectedOption"/>
JavaScript
function wlCommonInit(){
$("#mySelect").bind('change', changeValue);
}
function changeValue() {
var mySelectedIndex = $("#mySelect option:selected").index();
$("#selectedOption").val($("#mySelect option:selected").text());
if($("#mySelect").is("select")){
var fakeSelect = $("#mySelect").clone();
$("#mySelect").replaceWith(fakeSelect);
$("#mySelect").bind('change', changeValue);
$("#mySelect").prop('selectedIndex', mySelectedIndex);
}
}

While my previous answer will work, only in iOS6, the following works for me in both iOS6 and iOS7 using the iOS7-Select-Element-Auto-Close plug-in by lukewhyte.
Simply place the JS code provided in the plug-in in your project and include it in your index.html,
<script src="js/select.js"></script>
Then:
HTML
<div id="mySelectDiv">
<select id="mySelect">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="mercedes">Mercedes</option>
<option value="audi">Audi</option>
</select>
</div>
JavaScript
function wlCommonInit(){
$('#mySelect').iOSSelect();
$("#mySelect").bind('change', changeValue);
}
function changeValue() {
$("#selectedOption").val($("#mySelect option:selected").text());
}

Creating a select drop-down list that expands when a user hover over an option

I am trying to create a select element which has a basic list, then when the user hovers over an option it expands to shows a more complete list.
I started by using css to hide all the values I wanted hidden, but this did not adjust the height of the select dropdown, so I was left with a lot of white space.
I then tried to have two selects, one with the reduced list, the other with the complete list(which is hidden). I then used javascript to copy the options from the complete list to the reduced list, when a user hover on the 'Other' optgroup. The code for this is shown below.
Html:
<select id="Title">
<option value="">Select...</option>
<option value="MR">Mr</option>
<option value="MISS">Miss</option>
<option value="MRS">Mrs</option>
<optgroup label="Other">Other</optgroup>
</select>
<select id="FullTitle" style="display:none">
<option value="">Select...</option>
<option value="MR">Mr</option>
<option value="MISS">Miss</option>
<option value="MRS">Mrs</option>
<option value="MS">Ms</option>
<option value="DR">Doctor</option>
</select>
Javascript:
<script type="text/javascript">
$('select').find('optgroup').hover(
function () {
var parent = $(this).parent()
var selected = parent.find('option:selected').val()
var id = "#Full" + parent.attr('id')
parent.html($(id).html())
parent.find('option[value="'+ selected +'"]').attr('selected', 'selected')
})
</script>
This works fine in firefox but does not work in either IE or Chrome. I am not sure why.
I was wondering if anyone knows why this is not working or a better approach to my problem?

Hover events don't fire for options in IE and Chrome. There are some scripts you can try that might do this, and I've seen other posts on this site about it as well:
jquery hover event doesn't work with select option tag in google chrome?
From what I've seen, converting this into a div/ul and using css/jquery to make it look like a select list might by your best bet.

Applying rateit jquery plugin to a select box

I have the following select form element, and I want to apply the rateit jquery plugin to it.
<select class="test" id="Rating" name="Rating">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
</select>
and I am trying to apply the plugin using $("select.test").rateit();, but despite fireQuery showing data attached the the select element that, no effect is made and I am still left with a select box, and not a line of stars.
EDIT
CSS File is included
Here is the page in question

You're using the plugin wrong. See very simple example: http://jsfiddle.net/rudiedirkx/ZuJ2k/
The select has to be there, but you still have to reference the div when you call the plugin: $('div#rating2').rateit();
The div then has a reference to the select with a data attribute: data-rateit-backingfld="select#Rating"
edit
Actually it looks like you're not using the plugin at all? Where do you call the plugin?
edit
This is your code:
rateItDiv = $('<div class="rateit" data-rateit-backingfld="#Rating"></div>');
$("div#ReviewInputZone select.test").after(rateItDiv);
$('div#rateit').rateit();
On the last line, you reference div#rateit, but that div doesn't exist. You just created a div.rateit, not a div#rateit. Change either of those to the other, and it should work. I'd keep the # because that's slightly faster (but you'd have to be sure there's only one of these rateit dropdowns on a page).
So the new first line:
rateItDiv = $('<div id="rateit" class="rateit" data-rateit-backingfld="#Rating"></div>');
edit
Also, you can test it before you change any code. Just open your Javascript console (Firebug in FF or Developer tools in Chrome) and type: jQuery('div.rateit').rateit();

hide() not working in IE [duplicate]

My code works perfect in firefox and gives error in IE. any ideas?
I have a dropdown with various options, I am trying to show/hide options in another dropdown based on the selected value.
function selectNames() {
var Name = $("#SelectName").attr("value");
$("."+Name).each(function() {
$(this).hide();
});
}
<select >
<option class="Name1" value="SomeName1" </option>
<option class="Name2" value="SomeName2" </option>
</select>
<select id="SelectName" onchange="javascript:selectNames();" >
<option value="Name1" </option>
<option value="Name2" </option>
</select>
Any help is appreciated..

Make sure you close the start tag. Try to use this:
<select>
<option class="Name1" value="SomeName1" />
<option class="Name2" value="SomeName2" />
</select>
<select id="SelectName" onchange="javascript:selectNames();" >
<option value="Name1" />
<option value="Name2" />
</select>
Seems to work for me in IE8.

It won't work in IE & Chrome
check out in IE or Chrome
The best alternative that you can do is to remove the option rather than hiding it.(you should keep a copy of the original options before removing it.)
var copy = $("."+Name).clone();
function selectNames() {
$("#thefirstselect option").remove();
copy.appendTo("#thefirstselect");
var Name = $("#SelectName").val();
$("."+Name).each(function() {
$(this).remove();
});
}

Your markup is not correct. You are each option open tag isn't properly closed.
Also, the specs do not specify CSS changes to individual option tags, though it does work on Firefox.
In simpler words, you cannot hide individual inputs - in which case, you'll have to remove them.

If this is a direct copy and paste then you need to close the select options to look like this:
<option value="Name1">Name1</option>
<option value="Name2">Name2</option>

I would suggest having two selects that you show and hide. Show and hide of options sounds risky.
Also, make sure you set the hidden select to attr('disabled','disabled')/disabled="disabled" and then when you unhide it undo that with removeAttr('disabled'). This is to prevent the hidden select from posting data to the server when you have multiple selects with the same name="...".
If you must use a single select, you may want to appendTo/remove the options, but that is up to you. If show/hide works in all browsers, go for it.

Sadly, you just can't.
IE don't support hide of individual options in a select, neither Chrome or Opera.
This feature isn't cross browser.
What you can do is remove the option and add it again later...

Javascript Event for Select element Selection

I'm looking to find the Javascript Event I need to put into jQuery's .bind function in order to have the function triggered when a selection is made from a <select> element.
At the moment I'm using .bind('change',function() { ...}) but I need the event to trigger when the selected option is chosen again.
Any suggestions?

I'm currently doing this successfully by clearing the dropdown box selection so that it can be re-selected. It will allow you to trigger the function again by adding this within your function before the end:
$('select option:selected').removeAttr('selected');

Change on select boxes is unreliable anyway. Read:
http://www.quirksmode.org/dom/events/change.html#t05
I'd probably go for something click (but be suspicious, somebody (--> IE) is going to make your life difficult). Or build something yourself without select.

This is possible, however it is not fully supported. Here is a sample:
html
<select id="selectId">
<option value="1">A</option>
<option value="2">B</option>
<option value="3">C</option>
<option value="4">D</option>
</select>
jquery
$("#selectId>option").click(function(){
alert(this.value);
});
here is a mediocre approach to handle ie:
<div id="dropdownWrapper">
<select id="selectId">
<option value="1">A</option>
<option value="2">B</option>
<option value="3">C</option>
<option value="4">D</option>
</select>
</div>
js
var clickCount_guid324fF = 0;
$("#dropdownWrapper").click(function(){
if(++clickCount_guid324fF % 2 == 0){
alert($("#selectId").val());
clickCount_guid324fF = 0;
}
});

Wouldn't click work? .bind('click',function() { ...})

I once did this using mouseup, and checked where the event originated. If it was an option element, i handled the select. No listening on onchange at all:
<body>
<select id="select0">
<option value="0">option 0</option>
<option value="1">option 1</option>
<option value="2">option 2</option>
</select>
<script type="text/javascript">
$('#select0').bind('mouseup', function (e) {
var src = e.target;
if (src.nodeName.toLowerCase()==='option') {
doMagicOnSelect(this);
}
});
function doMagicOnSelect(selectElem) {
console.log('current value:'+selectElem.value);
}
</script>
</body>

There is no reliable event fired when a selected option is re-chosen.
Whilst on some browsers you can catch events originating from an <option> (which you could use to trap click and keyboard events if you had the patience to try to reproduce a browser's select handling), this is unstandardised and doesn't work in IE (as it uses native Windows widgets to implement select boxes, which don't give that kind of granular access).
If you need to be able to re-fire an event when the same option is chosen again, what you have doesn't really sound like a select box to me; it could perhaps be better replaced with a scripted pop-up div full of buttons. (There are plenty of scripts that will substitute a select box for a scripted div to give you greater control on browsers where JavaScript is available.)

bind the change AND click event
$select.bind("change click", function (event) { // do something });