How to use Checkbox inside Select Option

Question

The client has given me a design which has a Select Option menu containing a checkbox together with the item name as individual items in the list. Is there anyway possible t

Answer 1

Only add class create div and add class form-control. iam use JSP,boostrap4. Ignore c:foreach.

<div class="multi-select form-control" style="height:107.292px;">
        <div class="checkbox" id="checkbox-expedientes">
            <c:forEach var="item" items="${postulantes}">
                <label class="form-check-label">
                    <input id="options" class="postulantes" type="checkbox" value="1">Option 1</label>
            </c:forEach>
        </div>
    </div>

Answer 2

You can try Bootstrap-select. It has a live search too!

Answer 3

For a Pure CSS approach, you can use the :checked selector combined with the ::before selector to inline conditional content.

Just add the class select-checkbox to your select element and include the following CSS:

.select-checkbox option::before {
  content: "\2610";
  width: 1.3em;
  text-align: center;
  display: inline-block;
}
.select-checkbox option:checked::before {
  content: "\2611";
}

You can use plain old unicode characters (with an escaped hex encoding) like these:

• ☐ Ballot Box - \2610
• ☑ Ballot Box With Check - \2611

Or if you want to spice things up, you can use these FontAwesome glyphs

• .fa-square-o - \f096
• .fa-check-square-o - \f046

Demo in jsFiddle & Stack Snippets

select {
  width: 150px;
}

.select-checkbox option::before {
  content: "\2610";
  width: 1.3em;
  text-align: center;
  display: inline-block;
}
.select-checkbox option:checked::before {
  content: "\2611";
}

.select-checkbox-fa option::before {
  font-family: FontAwesome;
  content: "\f096";
  width: 1.3em;
  display: inline-block;
  margin-left: 2px;
}
.select-checkbox-fa option:checked::before {
  content: "\f046";
}

<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.css">

<h3>Unicode</h3>
<select multiple="" class="form-control select-checkbox" size="5">
  <option>Dog</option>
  <option>Cat</option>
  <option>Hippo</option>
  <option>Dinosaur</option>
  <option>Another Dog</option>
</select>

<h3>Font Awesome</h3>
<select multiple="" class="form-control select-checkbox-fa" size="5">
  <option>Dog</option>
  <option>Cat</option>
  <option>Hippo</option>
  <option>Dinosaur</option>
  <option>Another Dog</option>
</select>

Note: Beware of IE compatibility issues however

Answer 4

If you want to create multiple select dropdowns in the same page:

.multiselect {
  width: 200px;
}

.selectBox {
  position: relative;
}

.selectBox select {
  width: 100%;
  font-weight: bold;
}

.overSelect {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
}

#checkboxes {
  display: none;
  border: 1px #dadada solid;
}

#checkboxes label {
  display: block;
}

#checkboxes label:hover {
  background-color: #1e90ff;
}

Html:

 <form>
<div class="multiselect">
<div class="selectBox" onclick="showCheckboxes()">
<select>
<option>Select an option</option>
</select>
<div class="overSelect"></div>
</div>
<div id="checkboxes">
<label for="one">
<input type="checkbox" id="one" />First checkbox</label>
<label for="two">
<input type="checkbox" id="two" />Second checkbox</label>
<label for="three">
<input type="checkbox" id="three" />Third checkbox</label>
</div>
</div>
<div class="multiselect">
<div class="selectBox" onclick="showCheckboxes()">
<select>
<option>Select an option</option>
</select>
<div class="overSelect"></div>
</div>
<div id="checkboxes">
<label for="one">
<input type="checkbox" id="one" />First checkbox</label>
<label for="two">
<input type="checkbox" id="two" />Second checkbox</label>
<label for="three">
<input type="checkbox" id="three" />Third checkbox</label>
</div>
</div>

</form>

Using Jquery:

 function showCheckboxes(elethis) {
        if($(elethis).next('#checkboxes').is(':hidden')){
            $(elethis).next('#checkboxes').show();
            $('.selectBox').not(elethis).next('#checkboxes').hide();  
        }else{
            $(elethis).next('#checkboxes').hide();
            $('.selectBox').not(elethis).next('#checkboxes').hide();
        }
 }

Answer 5

I started from @vitfo answer but I want to have <option> inside <select> instead of checkbox inputs so i put together all the answers to make this, there is my code, I hope it will help someone.

$(".multiple_select").mousedown(function(e) {
    if (e.target.tagName == "OPTION") 
    {
      return; //don't close dropdown if i select option
    }
    $(this).toggleClass('multiple_select_active'); //close dropdown if click inside <select> box
});
$(".multiple_select").on('blur', function(e) {
    $(this).removeClass('multiple_select_active'); //close dropdown if click outside <select>
});
	
$('.multiple_select option').mousedown(function(e) { //no ctrl to select multiple
    e.preventDefault(); 
    $(this).prop('selected', $(this).prop('selected') ? false : true); //set selected options on click
    $(this).parent().change(); //trigger change event
});

	
	$("#myFilter").on('change', function() {
      var selected = $("#myFilter").val().toString(); //here I get all options and convert to string
      var document_style = document.documentElement.style;
      if(selected !== "")
        document_style.setProperty('--text', "'Selected: "+selected+"'");
      else
        document_style.setProperty('--text', "'Select values'");
	});

:root
{
	--text: "Select values";
}
.multiple_select
{
	height: 18px;
	width: 90%;
	overflow: hidden;
	-webkit-appearance: menulist;
	position: relative;
}
.multiple_select::before
{
	content: var(--text);
	display: block;
  margin-left: 5px;
  margin-bottom: 2px;
}
.multiple_select_active
{
	overflow: visible !important;
}
.multiple_select option
{
	display: none;
    height: 18px;
	background-color: white;
}
.multiple_select_active option
{
	display: block;
}

.multiple_select option::before {
  content: "\2610";
}
.multiple_select option:checked::before {
  content: "\2611";
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<select id="myFilter" class="multiple_select" multiple>
  <option>A</option>
  <option>B</option>
  <option>C</option>
  <option>D</option>
  <option>E</option>
</select>

Answer 6

The best plugin so far is Bootstrap Multiselect

<html xmlns="http://www.w3.org/1999/xhtml">
<head>

<title>jQuery Multi Select Dropdown with Checkboxes</title>

<link rel="stylesheet" href="css/bootstrap-3.1.1.min.css" type="text/css" />
<link rel="stylesheet" href="css/bootstrap-multiselect.css" type="text/css" />

<script type="text/javascript" src="http://code.jquery.com/jquery-1.8.2.js"></script>
<script type="text/javascript" src="js/bootstrap-3.1.1.min.js"></script>
<script type="text/javascript" src="js/bootstrap-multiselect.js"></script>

</head>

<body>

<form id="form1">

<div style="padding:20px">

<select id="chkveg" multiple="multiple">

    <option value="cheese">Cheese</option>
    <option value="tomatoes">Tomatoes</option>
    <option value="mozarella">Mozzarella</option>
    <option value="mushrooms">Mushrooms</option>
    <option value="pepperoni">Pepperoni</option>
    <option value="onions">Onions</option>

</select>

<br /><br />

<input type="button" id="btnget" value="Get Selected Values" />

<script type="text/javascript">

$(function() {

    $('#chkveg').multiselect({

        includeSelectAllOption: true
    });

    $('#btnget').click(function(){

        alert($('#chkveg').val());
    });
});

</script>

</div>

</form>

</body>
</html>

Here's the DEMO

$(function() {

  $('#chkveg').multiselect({
    includeSelectAllOption: true
  });

  $('#btnget').click(function() {
    alert($('#chkveg').val());
  });
});

.multiselect-container>li>a>label {
  padding: 4px 20px 3px 20px;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://davidstutz.de/bootstrap-multiselect/dist/js/bootstrap-multiselect.js"></script>
<link href="https://davidstutz.de/bootstrap-multiselect/docs/css/bootstrap-3.3.2.min.css" rel="stylesheet"/>
<link href="https://davidstutz.de/bootstrap-multiselect/dist/css/bootstrap-multiselect.css" rel="stylesheet"/>
<script src="https://davidstutz.de/bootstrap-multiselect/docs/js/bootstrap-3.3.2.min.js"></script>

<form id="form1">
  <div style="padding:20px">

    <select id="chkveg" multiple="multiple">
      <option value="cheese">Cheese</option>
      <option value="tomatoes">Tomatoes</option>
      <option value="mozarella">Mozzarella</option>
      <option value="mushrooms">Mushrooms</option>
      <option value="pepperoni">Pepperoni</option>
      <option value="onions">Onions</option>
    </select>
    
    <br /><br />

    <input type="button" id="btnget" value="Get Selected Values" />
  </div>
</form>