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

You cannot place checkbox inside select element but you can get the same functionality by using HTML, CSS and JavaScript. Here is a possible working solution. The explanation follows.

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Code:

var expanded = false;

function showCheckboxes() {
  var checkboxes = document.getElementById("checkboxes");
  if (!expanded) {
    checkboxes.style.display = "block";
    expanded = true;
  } else {
    checkboxes.style.display = "none";
    expanded = false;
  }
}

.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;
}

  

    

      
        Select an option
      
      

    
    

      
        First checkbox
      
        Second checkbox
      
        Third checkbox
    
  

Explanation:

At first we create a select element that shows text "Select an option", and empty element that covers (overlaps) the select element (

). We do not want the user to click on the select element - it would show an empty options. To overlap the element with other element we use CSS position property with value relative | absolute.

To add the functionality we specify a JavaScript function that is called when the user clicks on the div that contains our select element (

).

We also create div that contains our checkboxes and style it using CSS. The above mentioned JavaScript function just changes

value of CSS display property from "none" to "block" and vice versa.

The solution was tested in the following browsers: Internet Explorer 10, Firefox 34, Chrome 39. The browser needs to have JavaScript enabled.

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More information:

CSS positioning

How to overlay one div over another div

http://www.w3schools.com/css/css_positioning.asp

CSS display property

http://www.w3schools.com/cssref/pr_class_display.asp

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