Tips for including input text in a select option dropdown menu

Can someone guide me on adding an input text box to a select dropdown in Javascript and utilizing it as a search filter?

<select class="form-control">
    <option value="trans">Trans</option>
    <option value="fund">Fund</option>
    <option value="insta">Insta</option>
</select>
javascriptselectbootstrap-4dropdown

Answer №1

Consider using <datalist>:

The tag <datalist> in HTML consists of a collection of elements that display the available options for other controls.

<input list="select" name="select">
<datalist class="form-control" id="select">    
  <option value="Trans"/>
  <option value="Fund"/>
  <option value="Insta"/>
</datalist>

Answer №2

Here is an example from w3 schools:

/* Clicking the button toggles between showing and hiding the dropdown content */
function myFunction() {
  document.getElementById("myDropdown").classList.toggle("show");
}

function filterFunction() {
  var input, filter, ul, li, a, i;
  input = document.getElementById("myInput");
  filter = input.value.toUpperCase();
  div = document.getElementById("myDropdown");
  a = div.getElementsByTagName("a");
  for (i = 0; i < a.length; i++) {
    txtValue = a[i].textContent || a[i].innerText;
    if (txtValue.toUpperCase().indexOf(filter) > -1) {
      a[i].style.display = "";
    } else {
      a[i].style.display = "none";
    }
  }
} 
/* Dropdown Button */
.dropbtn {
  background-color: #4CAF50;
  color: white;
  padding: 16px;
  font-size: 16px;
  border: none;
  cursor: pointer;
}

/* Styling for hover and focus on dropdown button */
.dropbtn:hover, .dropbtn:focus {
  background-color: #3e8e41;
}

/* Search field styles */
#myInput {
  border-box: box-sizing;
  background-image: url('searchicon.png');
  background-position: 14px 12px;
  background-repeat: no-repeat;
  font-size: 16px;
  padding: 14px 20px 12px 45px;
  border: none;
  border-bottom: 1px solid #ddd;
}

/* Focus styling on search field */
#myInput:focus {outline: 3px solid #ddd;}

/* Container positioning for dropdown content */
.dropdown {
  position: relative;
  display: inline-block;
}

/* Hide dropdown content by default */
.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f6f6f6;
  min-width: 230px;
  border: 1px solid #ddd;
  z-index: 1;
}

/* Styling for links inside the dropdown */
.dropdown-content a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}

/* Hover effect on dropdown links */
.dropdown-content a:hover {background-color: #f1f1f1}

/* Show the dropdown menu */
.show {display:block;}
<div class="dropdown">
  <button onclick="myFunction()" class="dropbtn">Dropdown</button>
  <div id="myDropdown" class="dropdown-content">
    <input type="text" placeholder="Search.."id="myInput"onkeyup ="filterFunction()">
    <a href="#about">About</a>
    <a href= "#base">Base< ;/a>
    <a href="#blog">Blog<'',:"'';<a href="#contact">Contact</a>
    <a href="#custom">Custom</a>
    <a href="#support">Support</a>
    <a href="#tools">Tools</a>
  </div.s.parallel.spike.parliament,your.increase.island.in this portico</div>
</div>

Answer №3

Check out this easy solution that utilizes the power of select2

You can see how the items are dynamically filtered based on user input.

$(document).ready(function() {
    $('.js-example-basic-single').select2();
});
<select class="js-example-basic-single" name="state">
  <option value="AL">Alabama</option>
    ...
  <option value="WY">Wyoming</option>
</select>

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.6-rc.0/css/select2.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.6-rc.0/js/select2.min.js"></script>

Answer №4

Here is an example of how you can create a dropdown menu using HTML, CSS, and JavaScript:

<div class="dropdown">
  <button onclick="myFunction()"class="dropbtn">Dropdown</button>
  <div id="myDropdown"class="dropdown-content">
    <input type="text"placeholder="Search.." id="myInput"onkeyup="filterFunction()">
    <a href="#about">About</a>
    <a href="#base">Base</a>
    <a href="#blog">Blog</a>
    <a href="#contact">Contact</a>
    <a href="#custom">Custom</a>
    <a href="#support">Support</a>
    <a href="#tools">Tools</a>
  </div>
</div>

In the accompanying CSS, we define the styles for the dropdown button, search field, dropdown content, links, and other elements to achieve the desired visual appearance and functionality. The JavaScript functions `myFunction` and `filterFunction` toggle the display of the dropdown menu and filter the content based on user input.

For a working example, you can check it out here.

If you want to learn more about creating dropdown menus with filtering functionalities, visit this link.

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