Select2 3.5.2.
I have some hierarchical data in a select2 list where the parents AND children are all valid selections. If possible, when the search term matches a child, I'd like the child to be highlighted by default instead of the parent.
For example, given the following code...
$("#hdn").select2(
{
width: '300px',
data:
[
{
id: 1,
text: 'Italy',
children:
[
{ id: 2, text: 'Italy - Sardinia' },
{ id: 3, text: 'Italy - Sicily' },
]
},
{
id: 4,
text: 'United Kingdom',
children:
[
{ id: 5, text: 'United Kingdom - Guernsey' },
{ id: 6, text: 'United Kingdom - Jersey' }
]
}
]
});
... if you start typing 'Jer', it currently highlights 'United Kingdom' by default:
Ideally, if you start typing 'Jer', it should highlight 'United Kingdom - Jersey' by default instead.
Because this is a group I still want the parent to show as an option, I just want the child to be highlighted by default instead.
See this fiddle: http://jsfiddle.net/moo_ski_doo/atnph13b/2/
Select2 will highlight the first option which is selectable by default. If you don't want the highlight to sit on "United Kingdom" first, you are going to have to remove the id.
Select2 3.5.2 does not provide an easy way to change how what option is highlighted by default.
Related
I am having el-tree> element and 1 button showNode.
so on click of this button i want to highlight a node with given index.
How to call highlight-current on click of button?
From documentation:
highlight-current: whether current node is highlighted
highlight-current is just a read-only attribute, in order to highlight a specific node, you have to call the method setCurrentKey
setCurrentKey: set highlighted node by key, only works when node-key is assigned, the param (key) is the node's key to be highlighted
So, you need first to add a key to every node, using the property key:
node-key: unique identity key name for nodes, its value should be unique across the whole tree
Like following example:
<el-tree
:data="myData"
node-key="id">
</el-tree>
And then, call the method setCurrentKey on the click event attached to your button:
<el-button #click="setCurrentKey(myData[index].id)">Highlight the n-index node</el-button>
I hope it helps you, bye.
Updated: The code above works only on 2.x version, here an example to highlite a node on version 1.4.13 (but I can't expand a node, so I had to expand all the tree):
var Main = {
data() {
return {
data: [{
label: 'Level one 1',
id: 1,
children: [{
label: 'Level two 1-1',
id: 11
}]
}, {
label: 'Level one 2',
id: 2,
children: [{
label: 'Level two 2-1',
id: 21,
children: [{
label: 'Level three 2-1-1',
id: 211
}]
}, {
label: 'Level two 2-2',
id: 22,
children: [{
label: 'Level three 2-2-1',
id: 221
}]
}]
}],
defaultProps: {
children: 'children',
label: 'label'
}
};
},
methods: {
handleNodeClick(data) {
console.log(data);
},
renderContent(h, { node, data, store }) {
let btn = h('span', {
props: {type: 'success'},
domProps: {
innerHTML: data.label,
id: "node-id-" + data.id
}
})
return btn
},
handleBtnClick(){
//Highlite the 211
document.getElementById("node-id-211").style.backgroundColor="yellow";
}
}
};
var Ctor = Vue.extend(Main)
new Ctor().$mount('#app')
#import url("//unpkg.com/element-ui#1.4.13/lib/theme-default/index.css");
<script src="//unpkg.com/vue/dist/vue.js"></script>
<script src="//unpkg.com/element-ui#1.4.13/lib/index.js"></script>
<div id="app">
<el-tree :data="data" :props="defaultProps" #node-click="handleNodeClick" :render-content="renderContent" :default-expand-all="true"></el-tree>
<el-button #click="handleBtnClick">Highlight the 211 node</el-button>
</div>
I'm using select2 (v 4.0.3) with Bootstrap 3 and I have to display several hundreds of alternatives per optgroup. Now I wish to collapse/expand the optgroups on click to make it a bit more manageable. I couldn't find any info on this so I thought I'd post a question.
I found an approach to this problem but I couldn't get it to work (it seems a bit outdated issue #730). The basic problem with that approach now is that in the current version of select2 elements aren't created until they are needed. Also, the class names seem to have changed a bit, as have apparently the names of events in the move to the latest version.
So far I've managed to get the collapse/expand functionality to work for the optgroups, but issues arise when the user provides text input (check the fiddle).
$(function () {
var data = [
{
text: "Group 1",
children: [
{ id: 'A1', text: 'a1'},
{ id: 'B2', text: 'b2'},
{ id: 'C3', text: 'c3'}]
},
{
text: "Group 2",
children: [
{ id: 'A2', text: 'a2'},
{ id: 'B3', text: 'b3'},
{ id: 'C1', text: 'c1'}
]
}];
$('#mySelect')
.select2({data: data, placeholder : 'Select one' });
// Toggle group on click
$('.select2')
.on('click', function(){
$('.select2-results__option').on('click', function(){
$(this).find('.select2-results__options--nested').toggle();
});
});
});
When the text input is used select2 runs the search and the events I've registered are dropped. My plan was to capture text input and check if the input field is empty or not, based on which I can decide to recreate the optgroup listeners or show all optgroups. Any help in this direction would be appreciated.
I want to add several items in a select2 input field at once.
If I copy+paste "Hawaii Alaska" into the select-multiple example here, then I get:
No results found
In my case spaces are not allowed in the items.
Is there a way to insert N space sperated items via copy+paste?
Desired result: (x)Hawaii (x)Alaska
you can add token separators in your select2 to identify characters as stopping points for your tags/choices, but unfortunately it bugs on the last copy pasted item
//try copy pasting bug,invalid, enhancement, wontfix
//then try bug,invalid, enhancement
//you will see the problem
var data = [{ id: 0, text: 'enhancement' }, { id: 1, text: 'bug' }, { id: 2, text: 'duplicate' }, { id: 3, text: 'invalid' }, { id: 4, text: 'wontfix' }];
var placeholder = "select";
$(".mySelect").select2({
tokenSeparators: [',', ', ', ' '],
data: data,
placeholder: placeholder,
allowClear: false,
minimumResultsForSearch: 5
});
here is the codepen
http://codepen.io/anon/pen/dMWQbd
its opened as a bug in github on the library
https://github.com/select2/select2/issues/3458
I added a select2 and it always show first option as blank.
just below the blank option, it always shows what i type in select2 textfield. Any Idea, how i can fix it.
= hidden_field_tag :tags // present in HAML form
// javascript
$('#tags').select2
createSearchChoice: (term, data) ->
if $(data).filter((->
#text.localeCompare(term) == 0
)).length == 0
return {
id: term
text: term
}
return
multiple: false
data: [
{
id: 0
text: 'story'
}
{
id: 1
text: 'bug'
}
{
id: 2
text: 'task'
}`enter code here`
]
Try this .....
Your input field should be like this
%input#tags{:style => "width: 300px", :type => "hidden"}
Your js code should be like this
$("#tags").select2({
placeholder:"Select an option",
createSearchChoice: function(term, data) {
if ($(data).filter((function() {
return this.text.localeCompare(term) === 0;
})).length === 0) {
return {
id: term,
text: term
};
}
},
multiple: false,
data: [
{
id: 0,
text: 'story'
}, {
id: 1,
text: 'bug'
}, {
id: 2,
text: 'task'
}
]
});
You no longer need to use createSearchChoice if you want to do this with Select2, you can just use the tags option. Right now you shouldn't be seeing the blank option, as you aren't passing one to Select2 at all, so this is lacking a bit of information that would explain that issue.
Select2 will automatically hide blank options though if you have a placeholder set, which I would always recommend. So the hacky solution is to set the placeholder option to whatever you want ("Select a few tags..."), but that only works if this is actually a blank option and not just a CSS issue. You can tell if it's a blank option if Select2 highlights it whenever you start searching, as it will automatically highlight the first option.
It would make more sense for this to be a CSS issue, maybe a bit too much padding somewhere, as the tag (or choice from createSearchChoice) should be inserted automatically at the top of the search results. So even if there was a spare blank option sitting around, it would show under the newly created search choice.
Is it possible somehow to group results in a Select2 component when it's not using <select> tag, but <input type="hidden">, and results are provided as "data" option in configuration object?
var select2Options = {
data: {
results: myArrayOfResults
}
};
Yes, the results objects support a children attribute...
so for example:
var select2Options = {
data: {
results: [
{text: "My shiny group", children: [
{id: 1, text: "My shiny item"},
{id: 2, text: "My shiny item2"}
]}
]
}
};
For ajax data loading with group and data work for me using,
$arrFinal = array(array("name"=>"My shiny group 1",
"children"=>array(array("id"=>1,"name"=>"My shiny item 11"),array("id"=>2,"name"=>"My shiny item 12"))
),array("name"=>"My shiny group 2",
"children"=>array(array("id"=>1,"name"=>"My shiny item 21"),array("id"=>2,"name"=>"My shiny item 22"))
)
);
die(json_encode(array("result" => $arrFinal)));
if formatResult: ratioFormatResult then,
function ratioFormatResult(row) {
// Here, you will get both group ("My shiny group 1") as well as data("My shiny item11") as row .
}
To make group selectable use id field along with name in group.