How to add input text in select option dropdown

Question

I would like to know how to add input text box to the select dropdown and use it as search filter in javascript.

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

Answer 1

You can try <datalist> :

The HTML <datalist> element contains a set of elements that represent the values available 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 a sample from w3 schools :

 /* When the user clicks on the button, toggle between hiding and showing 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; } /* Dropdown button on hover & focus */ .dropbtn:hover, .dropbtn:focus { background-color: #3e8e41; } /* The search field */ #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; } /* The search field when it gets focus/clicked on */ #myInput:focus {outline: 3px solid #ddd;} /* The container <div> - needed to position the dropdown content */ .dropdown { position: relative; display: inline-block; } /* Dropdown Content (Hidden by Default) */ .dropdown-content { display: none; position: absolute; background-color: #f6f6f6; min-width: 230px; border: 1px solid #ddd; z-index: 1; } /* Links inside the dropdown */ .dropdown-content a { color: black; padding: 12px 16px; text-decoration: none; display: block; } /* Change color of dropdown links on hover */ .dropdown-content a:hover {background-color: #f1f1f1} /* Show the dropdown menu (use JS to add this class to the .dropdown-content container when the user clicks on the dropdown button) */ .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> <a href="#contact">Contact</a> <a href="#custom">Custom</a> <a href="#support">Support</a> <a href="#tools">Tools</a> </div> </div> 

Answer 3

Here is a simple solution using select2

Even the items get filtered

 $(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

HTML:

<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>

CSS:

   /* Dropdown Button */
.dropbtn {
  background-color: #4CAF50;
  color: white;
  padding: 16px;
  font-size: 16px;
  border: none;
  cursor: pointer;
}

/* Dropdown button on hover & focus */
.dropbtn:hover, .dropbtn:focus {
  background-color: #3e8e41;
}

/* The search field */
#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;
}

/* The search field when it gets focus/clicked on */
#myInput:focus {outline: 3px solid #ddd;}

/* The container <div> - needed to position the dropdown content */
.dropdown {
  position: relative;
  display: inline-block;
}

/* Dropdown Content (Hidden by Default) */
.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f6f6f6;
  min-width: 230px;
  border: 1px solid #ddd;
  z-index: 1;
}

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

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

/* Show the dropdown menu (use JS to add this class to the .dropdown-content container when the user clicks on the dropdown button) */
.show {display:block;}

JS:

/* When the user clicks on the button,
toggle between hiding and showing 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";
    }
  }
}

Working example here

For more info, take a look at this: https://www.w3schools.com/howto/howto_js_filter_dropdown.asp