JQuery UI Multiselect how to get selected options values - jquery-ui

wasted my day while searching how to get selected options values in JQuery UI widget by Michael Aufreiter. Here's the link to his demo site and github: http://quasipartikel.at/multiselect/
As a result I just need value fields of selected options without POST/GET sendings to PHP script.
I tried many methods and resultless.
Need your help and ideas
*Found many topics about jquery ui multiselect but useless because of Aufreiter :s *

That should work. Tested with Chrome console
$("#countries").val();

I went to the site you've got listed above, and was able to run this in my chrome console:
$('.ui-multiselect .selected li').each(function(idx,el){ console.log(el.title); });
It seems like the values you want are stored in the title attributes of the list items within the div.selected element.
Edit:
Doh! Well of course you want the values. Sorry mate. Completely missed that. The real goods are stored in the jQuery data() objects. In this case, the key you want is 'optionLink'. It maintains a reference to an option element. Each list item in the '.selected' div used the jQuery.data() method to add the underlying option to it.
So, you need to get the selected list items, iterate through, grab the 'optionLink' from the data jQuery data store, and then get the value.
The following code works on the example page:
$('.ui-multiselect .selected li').each(function(idx,el){
console.log(el);
var link = $(el).data('optionLink');
// link now points to a jQuery wrapped <option> tag
// I do a test on link first. not sure why, but one of them was undefined.
// however, I got all four values. So I'm not sure what the first <li>
// is. I'm thinking it's the header...
if(link){
// here's your value. add it to an array, or whatever you need to do.
console.log(link.val());
}
});
This is the first I've seen of the multiselect. It's slick. But I sympathize with your frustration trying to get something out. A 'getSelectedOptions()' method would be nice.
Cheers

Try accessing the selected values on the close event.
e.g.
$("#dropdown").multiselect({
header: false,
selectedList : 1,
height: "auto",
}).multiselectfilter().bind("multiselectclose", function(event, ui) {
var value = $("#dropdown").val();
});
Hope that helps.

Best solution
$('#select').multiselect({
selectAllValue: 'multiselect-all',
enableCaseInsensitiveFiltering: true,
enableFiltering: true,
height: "auto",
close: function() {
debugger;
var values = new Array();
$(this).multiselect("getChecked").each(function(index, item) {
values.push($(item).val());
});
$("input[id*=SelectedValues]").val(values.join(","));
}
});

You can try this:
$('#ListBoxId').multiselect({
isOpen: true,
keepOpen: true,
filter: true
});

Related

Jquery UI Autocomplete not working after dom manipluation

I have been trying to implement the autocomplete and have come across a problem that has stumped me. The first time I call .autocomplete it all works fine and I have no problems. If, however, I call it after I have removed some (unrelated) elements from the DOM and added a new section to the DOM then autocomplete does nothing and reports no errors.
Code:-
$.ajax({
type : 'get',
dataType : 'json',
url : '/finance/occupations',
cache:true,
success:function(data){
occupationList = data;
$('.js-occupation').autocomplete({
source: occupationList,
messages: {
noResults: '',
results: function(){}
},
minLength : 2,
select:function(event, ui){
$('.js-occupationId').val(ui.item.id);
}
});
}
});
The background to this page is that it contains multiple sections that are manipulated as the user moves through them. Hide and show works fine and does not impact on the autocomplete. However, if I do the following:-
var section = $('.js-addressForm:last').clone();
clearForm(section);
$('div.addressDetails').append(section);
$('.js-addressForm:first').remove();
Which gives the user the bility to add multiple addresses on the previous section then the autocomplete stops working.
Any suggestions or pointers on something obvious I am missing?
I have tried to put the initialisation of the autocomplete on an event when the element gets focus and it still does not work.
You have to create the autocomplete after all other underlying objects. If you F12, you will see that the list is "visible", however it is below and hidden by all instances created after it.
If you created a div with inputs (one input being the autocomplete), then you create the automplete then the dialog instances, the autocomplete will never show. If you create the dialog then the autocomplete, no problem. The problem is the z-order
I have faced the same issue. For now to fix this, i'm creating widget on the input once input is in focus. It will help you solve the issue.
You can look for the help on
making sure some event bing only when needed
Sample code will look like this
$( "#target" ).focus(function() {
//I don't care if you manipulated the DOM or not. I'll be cautious. ;)
(function() {
$( "#combobox" ).combobox();
$( "#toggle" ).click(function() {
$( "#combobox" ).toggle();
});
})();
// use a flag variable if you want
});
This solved my problem. Hope its the solution you were looking f

Grab all fieldset elements inside div

In my ASP MVC 3 view I have a number of fieldset elements that are hidden when the page loads. Based upon a user selection of a group of radio buttons, I need to make the corresponding fieldset visible.
I'd like to do this in jquery by making an array of the fieldset elements, then cycle through them, adjusting their visibility property if they match the selected radio button or not. Is this possible?
Since there is so much code in the fieldsets I attached the screen shot below to save space/make it more readable. The fieldsets I am trying to alter are inside of the RightDiv. If you need any more detail, please let me know. Thx
You can try this:
$(function(){
$('[name="TransactionType"]').change(function(){
var id = '#' + this.className; //Get the id from the clicked radio classname
$('#RightDiv').find('fieldset').hide();// hide all fieldsets;
$('#RightDiv').find(id).show(); // show the selected one.
});
});
Just note that in your html helper you are providing the the first overload as same name for all. All is well except i believe it will create duplicate ids for each of these. You may want to override it in the HTMLattributes.
#Html.RadioButton("TransactionType", false, new{#class="Enroll", id="Radio1"})
#Html.RadioButton("TransactionType", false, new{#class="New", id="Radio2"})
Sorry, posted a bit too soon on this. Tried the following below and it worked just fine.
$(document).ready(function () {
$('input[name=TransactionType]').change(function () {
var radioValue = $(this);
var elements = [];
$('#RightDiv').children().each(function () {
elements.push($(this));
});
});
});

jquery ui 1.10.2 tabs - link to a tab from another page or website

I'm using the most recent JQuery UI Tabs (1.10.2). http://jqueryui.com/tabs/
I need to be able to link to individual tabs from external pages. Maybe the more correct way to say it would be to say that I need to be able to change the initially active tab via a bookmarble link.
I know how to set the active index so that #tabs-3 is the active tab
$( "#tabs" ).tabs({ active: 5 });
But I need to know how to change the value for .tabs({ active }) with the url hash so that a link of "tabs-page.html#tabs-3" will load the third tab of "tabs-page.html" by changing .tabs({ active }) to "2" (since it is a zero-based integer).
I'm really more of an html/css designer and a novice to JQuery/JQuery UI, please and thank you for your help. I've searched and found fixes for earlier versions and alternate libraries like JQuery Tools, but nothing for JQuery 1.10.2. I've found ways to link to the section and then reset the window location, but that results in a lot of "jumpiness" as the browser switches between window locations. If there is another page with this fix please link in the comments. THANKS SO MUCH!!!
You will need to read the value of the hash within your jQuery. Some good information can be found here Getting URL hash location, and using it in jQuery
var url = "http://site.com/file.htm#3";
var hashValue = url.substring(url.indexOf('#')).replace('#',''); // '3'
Once you have this, you will be able to set the active tab on the jqueryUI Tabs
$('#tabs').tabs( "option", "active", hashValue );
You would need to do all of this when the page initially loads, so within a $(function(){ ... });
Update
Here is the full code;
<script>
$(function () {
// run the jquery ui plugin
$('#tabs').tabs();
// grab the url
var url = document.URL;
// grab the value of the hash
var hashValue = url.substring(url.indexOf('#')).replace('#', '');
// check to make sure it is a number
if (!isNaN(hashValue)) {
// set the active tab
$('#tabs').tabs("option", "active", hashValue);
}
});
</script>

Select2 doesn't show selected value

Select2 loads all items from my list successful, the issue I found when try to select a specific value when page loads. Example:
:: put select2 in a specific html element, no value is selected even all items are loaded.
$('#my_id').select2();
:: When the page is loaded I'm trying to show a specific item selected, but doesn't work as expected, because even selected, the select2 doesn't show it.
$('#my_id').val('3'); //select the right option, but doesn't render it on page loads.
How to make a selected option to pop up when pages loads?
Thanks in advance.
#UPDATED
:: How I load all select2 items (sorry, its jade, not pure HTML):
label(for='category') Category
span.required *
select(id='category', style='width:230px', name='category')
option(value='') - Select -
each cat in categories
option(value='#{cat.id}') #{cat.description}
P.S.: All items from my list are loaded.
:: How I initialize the select2:
Just put the following line code on my javascript and it does successful:
$('#category').select2();
:: How I'm trying to select a specific value:
First attempt:
$('#category').select2(
{
initSelection: function(element, callback) {
callback($('#field-category').val());
}
}
);
Second attempt:
$('#category').val($('#field-category').val());
P.S.: #field-category has a value its a hidden input field and works OK.
You need to use the initSelection option to set the initial value.
If you are using a pre-defined select element to create the select2, you can use the following method
$('select').select2().select2('val','3')
Demo: Fiddle
add a trigger change after setting val:
$('#my_id').val('3').trigger('change');
A very simple way to tackle this problem is :
//Step1: Here assuming id of your selectbox is my_id, so this will add selected attribute to 1st option
$('#my_id option').eq(0).prop('selected',true);
//Step2: Now reinitialize your select box
//This will work, if you haven't initialized selectbox
$('#my_id').select2();
or
//This will work, if you have initialized selectbox earlier, so destroy it first and initialise it
$('#my_id').select2('destroy').select2();
This may help:
$('#mySelect2').val('1'); // Select the option with a value of '1'
$('#mySelect2').trigger('change'); // Notify any JS components that the value changed
You can find more on details here:
Thanks
Per here initSelection is deprecated in Select2 4.0 and later.
Using Select2 4.0.0 this worked for me:
$('#my_id').select2({val:3});
HT: #Kokizzu
Here is how to make val in select2 just select the corresponding element.
For some reason, select2 doesn't provide the function to look up selections by id.
init:
$("#thing").select2({data:sources, initSelection: function(item, callback) {
// despite select2 having already read the whole sources list when you
// do .val(n) you have to explicitly tell it how to find that item again.
var to_be_selected = null;
$.each(sources, function(index, thing) {
if (thing.id == item.val()) {
to_be_selected = thing;
return;
}
})
callback(to_be_selected);
}})
normal code
// to load the thing with id==3 from the initial sources list.
$("#thing").select2({'val': 3})
For me I was sending selected in the data set still default option was not getting selected. I had to do something like below to make it work -
$(".select").select2({
data: data_names
});
data_names.forEach(function(name) {
if (name.selected) {
$(".select").select2('val', name.id);
}
});
I had a multiple select2 box with multiple selections.
Step 1 was to put my string of school_ids into an array of integers corresponding to the id of each school, and remove a leading zero. I had to do this in a separate script tag.
<script>
var school_ids = <%= raw JSON.parse(#search.school_ids).map{|x| x.to_i} - [0]%>
</script>
Step two was to create the select box, then set the values, then trigger like so:
<script>
$(document).ready(function() {
$('.select2-multiple').select2({
placeholder: "Hit Enter After Selection",
width: 'resolve'
});
$('.select2-multiple').val(school_ids);
$('.select2-multiple').trigger('change');
</script>
trigger just select2 to set the value
$('#my_id').val('3').trigger("change.select2");
and this will trigger select2 with dropdown
$('#my_id').val('3').trigger("change");
I meet with the same problem, this works for me:
Using Select2 > 4.0.0
$('#select_id').val('3').trigger('change');
var option=$(this);
if(option.val()==data.StudentCourses.CourseId)
{
option.setAttribute('Selected');
}
});
i have initilized select2 because i just want few options selected from them.
If you are using select2 v4.0.0 or above, you can check select2 documentation
// Initialize select2 for all select tags
$('select').select2();
// Initialize select2 for a specific id
$('#my-id').select2();
// Initialize select2 for a class
$('.my-class').select2();
// Update the displayed value after changing the selected option.
$('#my-id').trigger('change');
$('.classname').each(function() {
$(this).siblings().find('.select2selection__rendered').text($(this).text())
})
in my case I were dealing with a class then I used this way to set showing content at select2
<option selected value="your_value">your_text</option>
u need to put this at each select box's first option

onChange event for custom select menu jquery mobile [duplicate]

I have a set of dynamically generated dropdown boxes on my page. basically I clone them using jQuery. now I want to capture the value selected on each dropdown on change event.
I tried something like this which did not work.
$('._someDropDown').live('change', function(e) {
//debugger;
var v = $(this);
alert($(this + ':selected').val());
alert($(this).val());
});
How do I get it done?
To get the text of the selected option
$("#your_select :selected").text();
To get the value of the selected option
$("#your_select").val();
This is what you need :)
$('._someDropDown').live('change', function(e) {
console.log(e.target.options[e.target.selectedIndex].text);
});
For new jQuery use on
$(document).on('change', '._someDropDown', function(e) {
console.log(this.options[e.target.selectedIndex].text);
});
$("#citiesList").change(function() {
alert($("#citiesList option:selected").text());
alert($("#citiesList option:selected").val());
});
citiesList is id of select tag
Check it Out-->
For getting text
$("#selme").change(function(){
$(this[this.selectedIndex]).text();
});
For getting value
$("#selme").change(function(){
$(this[this.selectedIndex]).val();
});
You can try:
$("._someDropDown").val();
To get the value of a drop-down (select) element, just use val().
$('._someDropDown').live('change', function(e) {
alert($(this).val());
});
If you want to the text of the selected option, using this:
$('._someDropDown').live('change', function(e) {
alert($('[value=' + $(this).val() + ']', this).text());
});
try this...
$("#yourdropdownid option:selected").val();
This is actually more efficient and has better readability in my opinion if you want to access your select with this or another variable
$('#select').find('option:selected')
In fact if I remember correctly phpStorm will attempt to auto correct the other method.
In case you want the index of the current selected value.
$selIndex = $("select#myselectid").prop('selectedIndex'));
The options discussed above won't work because they are not part of the CSS specification (it is jQuery extension). Having spent 2-3 days digging around for information, I found that the only way to select the Text of the selected option from the drop down is:
{ $("select", id:"Some_ID").find("option[selected='selected']")}
Refer to additional notes below:
Because :selected is a jQuery extension and not part of the CSS specification, queries using :selected cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. To achieve the best performance when using :selected to select elements, first select the elements using a pure CSS selector, then use .filter(":selected"). (copied from: http://api.jquery.com/selected-selector/)
You can also use :checked
$("#myselect option:checked").val(); //to get value
or as said in other answers simply
$("#myselect").val(); //to get value
and
$("#myselect option:checked").text(); //to get text

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