Reputation: 28431

How do you remove all the options of a select box and then add one option and select it with jQuery?

Using core jQuery, how do you remove all the options of a select box, then add one option and select it?

My select box is the following.

<Select id="mySelect" size="9"> </Select>

EDIT: The following code was helpful with chaining. However, (in Internet Explorer) .val('whatever') did not select the option that was added. (I did use the same 'value' in both .append and .val.)

$('#mySelect').find('option').remove().end()
.append('<option value="whatever">text</option>').val('whatever');

EDIT: Trying to get it to mimic this code, I use the following code whenever the page/form is reset. This select box is populated by a set of radio buttons. .focus() was closer, but the option did not appear selected like it does with .selected= "true". Nothing is wrong with my existing code - I am just trying to learn jQuery.

var mySelect = document.getElementById('mySelect');
mySelect.options.length = 0;
mySelect.options[0] = new Option ("Foo (only choice)", "Foo");
mySelect.options[0].selected="true";

EDIT: selected answer was close to what I needed. This worked for me:

$('#mySelect').children().remove().end()
.append('<option selected value="whatever">text</option>') ;

But both answers led me to my final solution..

Upvotes: 1245

Answers (28)

smdhkv

Reputation: 187

Try

$('#mySelect')
.html('<option value="whatever">text</option>')
.find('option:first')
.attr("selected","selected");

$('#mySelect').html('<option value="4">Value 4</option>
 <option value="5">Value 5</option>
<option value="6">Value 6</option>
<option value="7">Value 7</option>
<option value="8">Value 8</option>')
.find('option:first')
.prop("selected",true);

Upvotes: 0

Carlos

Reputation: 706

Cleaner give me Like it

   let data= []

   let inp = $('#mySelect')
        inp.empty()

        data.forEach(el=> inp.append(  new Option(el.Nombre, el.Id) ))

Upvotes: 4

Kazeem Quadri

Reputation: 265

I used vanilla javascript

let select = document.getElementById("mySelect");
select.innerHTML = "";

Upvotes: 3

HJW

Reputation: 402

The shortest answer:

$('#mySelect option').remove().append('<option selected value="whatever">text</option>');

Upvotes: -1

Kaushik shrimali

Reputation: 1228

Just one line to remove all options from the select tag and after you can add any options then make second line to add options.

$('.ddlsl').empty();

$('.ddlsl').append(new Option('Select all', 'all'));

One more short way but didn't tried

$('.ddlsl').empty().append(new Option('Select all', 'all'));

Upvotes: 25

Kamil Kiełczewski

Reputation: 92627

Try

mySelect.innerHTML = `<option selected value="whatever">text</option>`

function setOne() {
  console.log({mySelect});
  mySelect.innerHTML = `<option selected value="whatever">text</option>`;
}

<button onclick="setOne()" >set one</button>
<Select id="mySelect" size="9"> 
 <option value="1">old1</option>
 <option value="2">old2</option>
 <option value="3">old3</option>
</Select>

Upvotes: -1

michael01angelo

Reputation: 129

I saw this code in Select2 - Clearing Selections

$('#mySelect').val(null).trigger('change');

This code works well with jQuery even without Select2

Upvotes: 4

Bobby Jack

Reputation: 16049

Not sure exactly what you mean by "add one and select it", since it will be selected by default anyway. But, if you were to add more than one, it would make more sense. How about something like:

$('select').children().remove();
$('select').append('<option id="foo">foo</option>');
$('#foo').focus();

Response to "EDIT": Can you clarify what you mean by "This select box is populated by a set of radio buttons"? A <select> element cannot (legally) contain <input type="radio"> elements.

Upvotes: 51

Devkinandan Chauhan

Reputation: 1935

$("#id option").remove();
$("#id").append('<option value="testValue" >TestText</option>');

The first line of code will remove all the options of a select box as no option find criteria has been mentioned.

The second line of code will add the Option with the specified value("testValue") and Text("TestText").

Upvotes: 10

Nifemi Sola-Ojo

Reputation: 877

save the option values to be appended in an object
clear existing options in the select tag
iterate the list object and append the contents to the intended select tag

var listToAppend = {'':'Select Vehicle','mc': 'Motor Cyle', 'tr': 'Tricycle'};

$('#selectID').empty();

$.each(listToAppend, function(val, text) {
    $('#selectID').append( new Option(text,val) );
  });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

Upvotes: 3

LN Nitharsan

Reputation: 21

var select = $('#mySelect');
select.find('option').remove().end()
.append($('<option/>').val('').text('Select'));
var data = [{"id":1,"title":"Option one"}, {"id":2,"title":"Option two"}];
for(var i in data) {
    var d = data[i];
    var option = $('<option/>').val(d.id).text(d.title);
    select.append(option);
}
select.val('');

Upvotes: 1

Jaydeep Shil

Reputation: 1959

First clear all exisiting option execpt the first one(--Select--)

Append new option values using loop one by one

$('#ddlCustomer').find('option:not(:first)').remove();
for (var i = 0; i < oResult.length; i++) {
   $("#ddlCustomer").append(new Option(oResult[i].CustomerName, oResult[i].CustomerID + '/' + oResult[i].ID));
}

Upvotes: 8

Jhon Intriago Thoth

Reputation: 331

Another way:

$('#select').empty().append($('<option>').text('---------').attr('value',''));

Under this link, there are good practices https://api.jquery.com/select/

Upvotes: 8

Md. Russel Hussain

Reputation: 51

Hope it will work

$('#myselect').find('option').remove()
.append($('<option></option>').val('value1').html('option1'));

Upvotes: 1

Nadeem Manzoor

Reputation: 750

You can do simply by replacing html

$('#mySelect')
.html('<option value="whatever" selected>text</option>')
.trigger('change');

Upvotes: 4

Jay Corbett

Reputation: 28431

Thanks to the answers I received, I was able to create something like the following, which suits my needs. My question was somewhat ambiguous. Thanks for following up. My final problem was solved by including "selected" in the option that I wanted selected.

$(function() {
  $('#mySelect').children().remove().end().append('<option selected value="One">One option</option>') ; // clear the select box, then add one option which is selected
  $("input[name='myRadio']").filter( "[value='1']" ).attr( "checked", "checked" ); // select radio button with value 1
  // Bind click event to each radio button.
  $("input[name='myRadio']").bind("click",
                                  function() {
    switch(this.value) {
      case "1":
        $('#mySelect').find('option').remove().end().append('<option selected value="One">One option</option>') ;
        break ;
      case "2":
        $('#mySelect').find('option').remove() ;
        var items = ["Item1", "Item2", "Item3"] ; // Set locally for demo
        var options = '' ;
        for (var i = 0; i < items.length; i++) {
          if (i==0) {
            options += '<option selected value="' + items[i] + '">' + items[i] + '</option>';
          }
          else {
            options += '<option value="' + items[i] + '">' + items[i] + '</option>';
          }
        }
        $('#mySelect').html(options);   // Populate select box with array
        break ;
    } // Switch end
  } // Bind function end
                                 ); // bind end
}); // Event listener end

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<label>One<input  name="myRadio" type="radio" value="1"  /></label>
<label>Two<input name="myRadio"  type="radio" value="2" /></label>
<select id="mySelect" size="9"></select>

Upvotes: 15

Shiv A

Reputation: 1241

How about just changing the html to new data.

$('#mySelect').html('<option value="whatever">text</option>');

Another example:

$('#mySelect').html('
    <option value="1" selected>text1</option>
    <option value="2">text2</option>
    <option value="3" disabled>text3</option>
');

Upvotes: 8

Barun

Reputation: 1622

This will replace your existing mySelect with a new mySelect.

$('#mySelect').replaceWith('<Select id="mySelect" size="9">
   <option value="whatever" selected="selected" >text</option>
   </Select>');

Upvotes: 4

humbads

Reputation: 3422

Building on mauretto's answer, this is a little easier to read and understand:

$('#mySelect').find('option').not(':first').remove();

To remove all the options except one with a specific value, you can use this:

$('#mySelect').find('option').not('[value=123]').remove();

This would be better if the option to be added was already there.

Upvotes: 8

marioosh

Reputation: 28576

I've found on the net something like below. With a thousands of options like in my situation this is a lot faster than .empty() or .find().remove() from jQuery.

var ClearOptionsFast = function(id) {
    var selectObj = document.getElementById(id);
    var selectParentNode = selectObj.parentNode;
    var newSelectObj = selectObj.cloneNode(false); // Make a shallow copy
    selectParentNode.replaceChild(newSelectObj, selectObj);
    return newSelectObj;
}

More info here.

Upvotes: 10

Shawn

Reputation: 3159

why not just use plain javascript?

document.getElementById("selectID").options.length = 0;

Upvotes: 160

mehrdad

Reputation: 71

Uses the jquery prop() to clear the selected option

$('#mySelect option:selected').prop('selected', false);

Upvotes: 4

mauretto

Reputation: 3212

If your goal is to remove all the options from the select except the first one (typically the 'Please pick an item' option) you could use:

$('#mySelect').find('option:not(:first)').remove();

Upvotes: 112

Mahzilla

Reputation: 8179

$('#mySelect')
    .empty()
    .append('<option selected="selected" value="whatever">text</option>')
;

Upvotes: 817

jvarandas

Reputation: 352

$("#control").html("<option selected=\"selected\">The Option...</option>");

Upvotes: 23

row1

Reputation: 5588

I had a bug in IE7 (works fine in IE6) where using the above jQuery methods would clear the select in the DOM but not on screen. Using the IE Developer Toolbar I could confirm that the select had been cleared and had the new items, but visually the select still showed the old items - even though you could not select them.

The fix was to use standard DOM methods/properites (as the poster original had) to clear rather than jQuery - still using jQuery to add options.

$('#mySelect')[0].options.length = 0;

Upvotes: 86

Hayden Chambers

Reputation: 747

$('#mySelect')
    .empty()
    .append('<option value="whatever">text</option>')
    .find('option:first')
    .attr("selected","selected")
;

Upvotes: 28

Matt

Reputation: 32302

$('#mySelect')
    .find('option')
    .remove()
    .end()
    .append('<option value="whatever">text</option>')
    .val('whatever')
;

Upvotes: 1878

How do you remove all the options of a select box and then add one option and select it with jQuery?

Answers (28)

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