I have multiple autocomplete inputs on my page. Behind the scenes, each autocomplete list is a separate hidden ul element (ul.ui-autocomplete), but I cannot figure out how they are linked to the input.
I am trying to use the scrollTo plugin to scroll to the li.ui-state-hover element so that the current selection is visible. This works fine, except for when you switch between inputs. Selecting ul.ui-autocomplete is not sufficient, because I don't know which one I am getting.
I found a solution.
If you set up the combobox as described in the jQueryUI comobobox example, there is an input variable in the _create function:
var input = this.input = $( "<input>" )
.insertAfter( select )
.val( value )
...
You can access the ul element by calling .data() on that input variable:
var $ul = input.data('autocomplete').menu.element;
Related
I searched a lot on net but couldnt find any solution. I am making a webapp in which I want 2 textbox to get data input from user. I want autocomplete feature in this textbox. The list of tags for autocomplete is available locally. I tried listview but what I want is that after user select some option from autocomplete hints, the textbox should have the selected value, and through some object, i should get the value of textbox to be used by javascript/php. This is a very basic thing, but I'm not able to do. Please help me out
I tried this jsfiddle.net/ULXbb/48/ . But the problem in this is that both listview gets same value after I select something in 1 listview.
In order not to add the same value to both search input, you need to target them using .closest(), .next(), .prev() and .find(). jQuery-Mobile, enhances list-view with data filter in a different way.
Demo
<form>
<input>
</form>
<ul data-role="listview">
<li>
<a>text</a>
</li>
</ul>
The form where the input is located, is on the same level of the ul. To target the input box, you need to use .prev('form').find('input'). Check the demo and the new code below.
$("input[data-type='search']").keyup(function () {
if ($(this).val() === '') {
$(this).closest('form').next("[data-role=listview]").children().addClass('ui-screen-hidden');
}
});
$('a.ui-input-clear').click(function () {
$(this).closest('input').val('');
$(this).closest('input').trigger('keyup');
});
$("li").click(function () {
var text = $(this).find('.ui-link-inherit').text();
$(this).closest('[data-role=listview]').prev('form').find('input').val(text);
$(this).closest('[data-role=listview]').children().addClass('ui-screen-hidden');
});
Thanks #user714852 I have extended your answer just add this line in the script tag:
$("#mylist li" ).addClass('ui-screen-hidden');
It will do wonders.
A working example: Listview Autocomplete - Enhanced
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
I've been using the tag-it plugin from https://github.com/aehlke/tag-it (demo - http://aehlke.github.com/tag-it/examples.html).
In this code there is an option to display the inputted tags in another input, textarea etc. First option -
$('#singleFieldTags').tagit({
availableTags: sampleTags,
singleField: true,
singleFieldNode: $('#mySingleField')
});
Here the id - #singleFieldTags is the inputting field which is a list like <ul and id - #mySingleField displays the 'list-ordered' tags with commas between each.
All the tags that are added and removed in the #singleFieldTags appear in the #mySingleField. Since there is no built-it sortable function with tag-it, adding a sortable() to change the order of tags in #singleFieldTags, does not change the order of tags in #mySingleField.
The second option is a plain with only #singleFieldTags as follows :-
$('#singleFieldTags').tagit({
availableTags: sampleTags,
});
Although in tag-it.js there is a , the value does not appear in the mysql table after submitting the php form as the above list of tags is placed between <li></li>.
How is it possible to make the tags sortable and ensure that the same arrangement of tags in the list field <ul to be displayed in the <textarea as in First Option? Or How can the second option of sorting tags within a single field <input work and enabling it to be submitted by a form?
EDIT: There is a similar plugin like Tag-it called tagit here: http://webspirited.com/tagit/ . This plugin has sortable with an input box meaning if the tags were interchanged, and when submitted on form it would appear in the order of the sort. However, the disadvantage being that it has custom themeroller themes these are not similar and cannot even be linked to the ones at jQuery UI (jqueryui.com).
But on the other hand, the tag-it plugin (not tagit), can be loaded with these themes but does not provide the sortable function.
Here's a solution that uses the tag-it plugin, because I understand that your missing functionality is explained in your quote "...adding a sortable() to change the order of tags in #singleFieldTags, does not change the order of tags in #mySingleField".
In order to have "#mySingleField" reflect the new sort order, I'm adding a handler to the stop event of sortable():
$('#singleFieldTags').sortable({
stop: function(event,ui) {
$('#mySingleField').val(
$(".tagit-label",$(this))
.clone()
.text(function(index,text){ return (index == 0) ? text : "," + text; })
.text()
);
}
});
and
$('#singleFieldTags2').siblings(".tagit").sortable({
stop: function(event,ui) {
$('#singleFieldTags2').val(
$(".tagit-label",$(this))
.clone()
.text(function(index,text){ return (index == 0) ? text : "," + text; })
.text()
);
console.log( $('#singleFieldTags2').val() ); // just for reference
}
});
Here is a jsfiddle that demonstrates the functionality
(added functionality for single input field)
I am loading two MVC Partial Views in jQuery UI dialog using following code for editing and adding a record:
$.get(url, function(data)
{
dialogDiv.html(data);
var $form = $(formid);
$form.unbind();
$form.data("validator", null);
$.validator.unobtrusive.parse(document);
var dat = $form.data("unobtrusiveValidation");
var opts = dat ? dat.options || '' : '';
$form.validate(opts);
//THIS FUNCTION ADDS PLUGINS ETC.
runEditCreateStartScripts();
dialogDiv.dialog('open');
});
Following is the function that wires-up chosen functionality.
function runEditCreateStartScripts(){
$("select.chzn-select").chosen(
{
no_results_text: "no match",
allow_single_deselect: true
});
}
Everything is perfect on first call. After opening one dialog say edit a few times everything is broken. There is only hyperlink available in place of chosen stuff. This also happens if I open one dialog say add and then second dialog. The bindings and other functionality from first one (add) is gone.
Any insights on why this might be happening?
The problem that caused my issue was that the modals I was loading via AJAX had inputs with the SAME ID as an input field that was already on the page (using Django that has generic ID generators for model fields). This caused collision between the two inputs when re-triggering .chosen() on the selector. When I made the ID fields unique, all worked as expected.
Hope this would have helped.
Anyone know good sample code using jQuery UI's autocomplete widget that can autocomplete words in the middle of a text box, not just autocomplete of the word at the end only?
I'm using the jquery UI autocomplete widget for a component that supports entry of multiple tags. It's like like stack overflow's tag editor, but simpler: no fancy formatting in the autocomplete dropdown, no "tag" background images in the edit box. I started with the jQuery UI Autocomplete Multiple sample and modified it.
It's working OK, except autocomplete doesn't work for tags in the middle of a multi-tag string. For example, if I type C Fortran and then put the caret right after C and type +, I'd expect to see C++ in the autocomplete list but instead I see Fortran again.
Here's the code so far: http://jsfiddle.net/WCfyB/4/
This is the same problem described by autocomplete in middle of text (like Google Plus), but the problem in that question was simpler because he could rely on an empty # in the text to signal when to show the autocomplete. In my case, I can't just rely on the text-- I actually need to find out where the caret is and autocomplete for the word where the caret is.
I could build this myself using caret or another plugin, but was wondering if there was already a jQuery-UI-based sample online that I could use without re-inventing another wheel, especially if there are browser-specific corner cases to worry about. Ideally, it'd behave like this: whenever the user places the caret inside or at the end of a tag (where tags are always separated by 1+ spaces), autocomplete is shown for that tag. Know a good sample?
I don't know of any examples like this, but here's something that you could start with:
var availableTags = [ ... ];
function split(val) {
return val.split(/ \s*/);
}
function extractLast(term) {
return split(term).pop();
}
$("#tags")
.bind("keydown", function(event) {
// don't navigate away from the field on tab when selecting an item
if (event.keyCode === $.ui.keyCode.TAB
&& $(this).data("autocomplete").menu.active) {
event.preventDefault();
}
})
.autocomplete({
minLength: 0,
source: function(request, response) {
var results = [],
selectionStart = this.element[0].selectionStart
term = extractLast(request.term.substring(0, selectionStart));
if (term.length > 0) {
results = $.ui.autocomplete.filter(availableTags, term);
}
response(results);
},
focus: function() {
return false; // prevent value inserted on focus
},
select: function(event, ui) {
var terms = split(this.value.substring(0, this.selectionStart));
terms.pop(); // remove the current input
terms.push(ui.item.value); // add the selected item
this.value =
$.trim(terms.join(" ") + this.value.substring(this.selectionStart)) + " ";
return false;
}
});
Example: http://jsfiddle.net/WCfyB/7/
The major caveat here is that the selectionStart method does not work in IE. You can replace those function calls with one of those plugins you mentioned in your question.