This JavaScript component is a widget that provides a multi-select box control. You provide an array of data, call the render() method, and the control is rendered. This widget allows users to select items by simply clicking on the items without having to press the CTRL key.
This component does not have any dependencies outside of a modern browser. This has been tested on the following browsers:
- Chrome 39.0.2171.99 (64-bit)
- Internet Explorer 9 (64-bit)
- Firefox 32.0
First include the CSS and JavaScript in your web page.
<link rel="stylesheet" href="multiselect.css" />
<script type="text/javascript" src="multiselect.js"></script>Once it is included place a DIV somewhere. Then using a little bit of JavaScript initialize the control.
<div id="food"></div>
<br />
<button type="button" id="getSelected">Get Selected</button>
<script type="text/javascript">
var foodSelector = window.multiselect.render({
elementId: "food",
data: [
{ "value": 1, "text": "Greek" },
{ "value": 2, "text": "Thai" },
{ "value": 3, "text": "American", "selected": true },
{ "value": 4, "text": "Mexican" }
],
onItemClick:function(e){
if(e.classList.length==0) {
e.selected=false;
console.log(e.target)
}else{
console.log(e.target)
}
}
});
document.getElementById("getSelected").addEventListener("click", function() {
console.log(foodSelector.getSelected());
console.log(foodSelector.getSelectedIndexes());
console.log(foodSelector.getSelectedValues());
});
</script>Multiselect supports listening for custom events.
When an item is clicked you can be alerted. To do this add an onItemClick handler like the example below. The event handler is provided a single argument of the item that was clicked.
var foodSelector = window.multiselect.render({
elementId: "food",
data: [
{ "value": 1, "text": "Greek" },
{ "value": 2, "text": "Thai" },
{ "value": 3, "text": "American", "selected": true },
{ "value": 4, "text": "Mexican" }
],
onItemClick: function(el) {
console.log("%o was clicked", el);
}
});The MIT License (MIT)
Copyright (c) 2015 Adam Presley
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.