If you know the Index, Value or Text. also if you don't have an ID for a direct reference.
This, this and this are all helpful answers.
Example markup
<div class="selDiv">
<select class="opts">
<option selected value="DEFAULT">Default</option>
<option value="SEL1">Selection 1</option>
<option value="SEL2">Selection 2</option>
</select>
</div>
A selector to get the middle option-element by value is
$('.selDiv option[value="SEL1"]')
For an index:
$('.selDiv option:eq(1)')
For a known text:
$('.selDiv option:contains("Selection 1")')
EDIT: As commented above the OP might have been after changing the selected item of the dropdown. In version 1.6 and higher the prop() method is recommended:
$('.selDiv option:eq(1)').prop('selected', true)
In older versions:
$('.selDiv option:eq(1)').attr('selected', 'selected')
EDIT2: after Ryan's comment. A match on "Selection 10" might be unwanted. I found no selector to match the full text, but a filter works:
$('.selDiv option')
.filter(function(i, e) { return $(e).text() == "Selection 1"})
EDIT3: Use caution with $(e).text() as it can contain a newline making the comparison fail. This happens when the options are implicitly closed (no </option> tag):
<select ...>
<option value="1">Selection 1
<option value="2">Selection 2
:
</select>
If you simply use e.text any extra whitespace like the trailing newline will be removed, making the comparison more robust.
None of the methods above provided the solution I needed so I figured I would provide what worked for me.
$('#element option[value="no"]').attr("selected", "selected");
You can just use val() method:
$('select').val('the_value');
By value, what worked for me with jQuery 1.7 was the below code, try this:
$('#id option[value=theOptionValue]').prop('selected', 'selected').change();
There are a number of ways to do this, but the cleanest approach has been lost among the top answers and loads of arguments over val(). Also some methods changed as of jQuery 1.6, so this needs an update.
For the following examples I will assume the variable $select is a jQuery object pointing at the desired <select> tag, e.g. via the following:
var $select = $('.selDiv .opts');
Note 1 - use val() for value matches:
For value matching, using val() is far simpler than using an attribute selector: https://jsfiddle.net/yz7tu49b/6/
$select.val("SEL2");
The setter version of .val() is implemented on select tags by setting the selected property of a matching option with the same value, so works just fine on all modern browsers.
Note 2 - use prop('selected', true):
If you want to set the selected state of an option directly, you can use prop (not attr) with a boolean parameter (rather than the text value selected):
e.g. https://jsfiddle.net/yz7tu49b/
$option.prop('selected', true); // Will add selected="selected" to the tag
Note 3 - allow for unknown values:
If you use val() to select an <option>, but the val is not matched (might happen depending on the source of the values), then "nothing" is selected and $select.val() will return null.
So, for the example shown, and for the sake of robustness, you could use something like this https://jsfiddle.net/1250Ldqn/:
var $select = $('.selDiv .opts');
$select.val("SEL2");
if ($select.val() == null) {
$select.val("DEFAULT");
}
Note 4 - exact text match:
If you want to match by exact text, you can use a filter with function. e.g. https://jsfiddle.net/yz7tu49b/2/:
var $select = $('.selDiv .opts');
$select.children().filter(function(){
return this.text == "Selection 2";
}).prop('selected', true);
although if you may have extra whitespace you may want to add a trim to the check as in
return $.trim(this.text) == "some value to match";
Note 5 - match by index
If you want to match by index just index the children of the select e.g. https://jsfiddle.net/yz7tu49b/3/
var $select = $('.selDiv .opts');
var index = 2;
$select.children()[index].selected = true;
Although I tend to avoid direct DOM properties in favour of jQuery nowadays, to future-proof code, so that could also be done as https://jsfiddle.net/yz7tu49b/5/:
var $select = $('.selDiv .opts');
var index = 2;
$select.children().eq(index).prop('selected', true);
Note 6 - use change() to fire the new selection
In all the above cases, the change event does not fire. This is by design so that you do not wind up with recursive change events.
To generate the change event, if required, just add a call to .change() to the jQuery select object. e.g. the very first simplest example becomes https://jsfiddle.net/yz7tu49b/7/
var $select = $('.selDiv .opts');
$select.val("SEL2").change();
There are also plenty of other ways to find the elements using attribute selectors, like [value="SEL2"], but you have to remember attribute selectors are relatively slow compared to all these other options.
Using jquery-2.1.4, I found the following answer to work for me:
$('#MySelectionBox').val(123).change();
If you have a string value try the following:
$('#MySelectionBox').val("extra thing").change();
Other examples did not work for me so that's why I'm adding this answer.
I found the original answer at:
https://forum.jquery.com/topic/how-to-dynamically-select-option-in-dropdown-menu
Exactly it will work try this below methods
For normal select option
<script>
$(document).ready(function() {
$("#id").val('select value here');
});
</script>
For select 2 option trigger option need to use
<script>
$(document).ready(function() {
$("#id").val('select value here').trigger('change');
});
</script>
$(elem).find('option[value="' + value + '"]').attr("selected", "selected");
You could name the select and use this:
$("select[name='theNameYouChose']").find("option[value='theValueYouWantSelected']").attr("selected",true);
It should select the option you want.
Answering my own question for documentation. I'm sure there are other ways to accomplish this, but this works and this code is tested.
<html>
<head>
<script language="Javascript" src="javascript/jquery-1.2.6.min.js"></script>
<script type="text/JavaScript">
$(function() {
$(".update").bind("click", // bind the click event to a div
function() {
var selectOption = $('.selDiv').children('.opts') ;
var _this = $(this).next().children(".opts") ;
$(selectOption).find("option[index='0']").attr("selected","selected");
// $(selectOption).find("option[value='DEFAULT']").attr("selected","selected");
// $(selectOption).find("option[text='Default']").attr("selected","selected");
// $(_this).find("option[value='DEFAULT']").attr("selected","selected");
// $(_this).find("option[text='Default']").attr("selected","selected");
// $(_this).find("option[index='0']").attr("selected","selected");
}); // END Bind
}); // End eventlistener
</script>
</head>
<body>
<div class="update" style="height:50px; color:blue; cursor:pointer;">Update</div>
<div class="selDiv">
<select class="opts">
<option selected value="DEFAULT">Default</option>
<option value="SEL1">Selection 1</option>
<option value="SEL2">Selection 2</option>
</select>
</div>
</body>
</html>
For setting select value with triggering selected:
$('select.opts').val('SEL1').change();
For setting option from a scope:
$('.selDiv option[value="SEL1"]')
.attr('selected', 'selected')
.change();
This code use selector to find out the select object with condition, then change the selected attribute by attr().
Futher, I recommend to add change() event after setting attribute to selected, by doing this the code will close to changing select by user.
$('#select option[data-id-estado="3"]').prop("selected",true).trigger("change");
// or
$('#select option[value="myValue"]').prop("selected",true).trigger("change");
Try this
you just use select field id instead of #id (ie.#select_name)
instead of option value use your select option value
<script>
$(document).ready(function() {
$("#id option[value='option value']").attr('selected',true);
});
</script>
I use this, when i know the index of the list.
$("#yourlist :nth(1)").prop("selected","selected").change();
This allows the list to change, and fire the change event.
The ":nth(n)" is counting from index 0
i'll go with:-
$("select#my-select option") .each(function() { this.selected = (this.text == myVal); });
/* This will reset your select box with "-- Please Select --" */
<script>
$(document).ready(function() {
$("#gate option[value='']").prop('selected', true);
});
</script>
For Jquery chosen if you send the attribute to function and need to update-select option
$('#yourElement option[value="'+yourValue+'"]').attr('selected', 'selected');
$('#editLocationCity').chosen().change();
$('#editLocationCity').trigger('liszt:updated');
if you want to not use jQuery, you can use below code:
document.getElementById("mySelect").selectedIndex = "2";
The $('select').val('the_value'); looks the right solution and if you have data table rows then:
$row.find('#component').val('All');
Thanks for the question. Hope this piece of code will work for you.
var val = $("select.opts:visible option:selected ").val();
There are a few suggestions why you should use prop instead of attr. Definitely use prop as I've tested both and attr will give you weird results except for the simplest of cases.
I wanted a solution where selecting from an arbitrarily grouped select options automatically selected another select input on that same page. So for instance, if you have 2 dropdowns - one for countries, and the other for continents. In this scenario, selecting any country automatically selected that country's continent on the other continent dropdown.
$("#country").on("change", function() {
//get continent
var originLocationRegion = $(this).find(":selected").data("origin-region");
//select continent correctly with prop
$('#continent option[value="' + originLocationRegion + '"]').prop('selected', true);
});
$("#country2").on("change", function() {
//get continent
var originLocationRegion = $(this).find(":selected").data("origin-region");
//select continent wrongly with attr
$('#continent2 option[value="' + originLocationRegion + '"]').attr('selected', true);
});
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="container">
<form>
<h4 class="text-success">Props to the good stuff ;) </h4>
<div class="form-row">
<div class="form-group col-md-6 col-sm-6">
<label>Conuntries</label>
<select class="custom-select country" id="country">
<option disabled selected>Select Country </option>
<option data-origin-region="Asia" value="Afghanistan">Afghanistan</option>
<option data-origin-region="Antartica" value="Antartica">Antartica</option>
<option data-origin-region="Australia" value="Australia">Australia</option>
<option data-origin-region="Europe" value="Austria">Austria</option>
<option data-origin-region="Asia" value="Bangladesh">Bangladesh</option>
<option data-origin-region="South America" value="Brazil">Brazil</option>
<option data-origin-region="Africa" value="Cameroon">Cameroon</option>
<option data-origin-region="North America" value="Canada">Canada</option>
<option data-origin-region="South America" value="Chile">Chile</option>
<option data-origin-region="Asia" value="China">China</option>
<option data-origin-region="South America" value="Ecuador">Ecuador</option>
<option data-origin-region="Australia" value="Fiji">Fiji</option>
<option data-origin-region="North America" value="Mexico">Mexico</option>
<option data-origin-region="Australia" value="New Zealand">New Zealand</option>
<option data-origin-region="Africa" value="Nigeria">Nigeria</option>
<option data-origin-region="Europe" value="Portugal">Portugal</option>
<option data-origin-region="Africa" value="Seychelles">Seychelles</option>
<option data-origin-region="North America" value="United States">United States</option>
<option data-origin-region="Europe" value="United Kingdom">United Kingdom</option>
</select>
</div>
<div class="form-group col-md-6 col-sm-6">
<label>Continent</label>
<select class="custom-select" id="continent">
<option disabled selected>Select Continent</option>
<option disabled value="Africa">Africa</option>
<option disabled value="Antartica">Antartica</option>
<option disabled value="Asia">Asia</option>
<option disabled value="Europe">Europe</option>
<option disabled value="North America">North America</option>
<option disabled value="Australia">Australia</option>
<option disabled value="South America">South America</option>
</select>
</div>
</div>
</form>
<hr>
<form>
<h4 class="text-danger"> Attributing the bad stuff to attr </h4>
<div class="form-row">
<div class="form-group col-md-6 col-sm-6">
<label>Conuntries</label>
<select class="custom-select country-2" id="country2">
<option disabled selected>Select Country </option>
<option data-origin-region="Asia" value="Afghanistan">Afghanistan</option>
<option data-origin-region="Antartica" value="Antartica">Antartica</option>
<option data-origin-region="Australia" value="Australia">Australia</option>
<option data-origin-region="Europe" value="Austria">Austria</option>
<option data-origin-region="Asia" value="Bangladesh">Bangladesh</option>
<option data-origin-region="South America" value="Brazil">Brazil</option>
<option data-origin-region="Africa" value="Cameroon">Cameroon</option>
<option data-origin-region="North America" value="Canada">Canada</option>
<option data-origin-region="South America" value="Chile">Chile</option>
<option data-origin-region="Asia" value="China">China</option>
<option data-origin-region="South America" value="Ecuador">Ecuador</option>
<option data-origin-region="Australia" value="Fiji">Fiji</option>
<option data-origin-region="North America" value="Mexico">Mexico</option>
<option data-origin-region="Australia" value="New Zealand">New Zealand</option>
<option data-origin-region="Africa" value="Nigeria">Nigeria</option>
<option data-origin-region="Europe" value="Portugal">Portugal</option>
<option data-origin-region="Africa" value="Seychelles">Seychelles</option>
<option data-origin-region="North America" value="United States">United States</option>
<option data-origin-region="Europe" value="United Kingdom">United Kingdom</option>
</select>
</div>
<div class="form-group col-md-6 col-sm-6">
<label>Continent</label>
<select class="custom-select" id="continent2">
<option disabled selected>Select Continent</option>
<option disabled value="Africa">Africa</option>
<option disabled value="Antartica">Antartica</option>
<option disabled value="Asia">Asia</option>
<option disabled value="Europe">Europe</option>
<option disabled value="North America">North America</option>
<option disabled value="Australia">Australia</option>
<option disabled value="South America">South America</option>
</select>
</div>
</div>
</form>
</div>
As seen in the code snippet, prop works correctly every time, but attr fails to select properly once the option has been selected once.
Keypoint: We're usually interested in the property of the attribute, so its safer to use prop over attr in most situations.
This question already has answers here:
Get selected value in dropdown list using JavaScript
(32 answers)
Closed 6 years ago.
I need to access the value selected from a drop down list using Javascript. But every time I get 'null' as the answer though a list item is selected.
My HTML page:
<select class="mySelect">
<option value="st1" selected="selected">Create new Stream</option>
<option value="st1">Stream 1</option>
<option value="st2">Stream 2</option>
<option value="st3">Stream 3</option>
<option value="st4">Stream 4</option>
</select>
<input type="button" value="show attributes" class="panel-button-attr" onclick="choice()">
When the above button is clicked, the selected value should be alerted to the user. So in my Javascript function:
function choice() {
var choice=document.getElementById("mySelect");
alert(choice);
var strUser = choice.options[choice.selectedIndex].text;
alert(strUser.toString());
}
Here, I've tried to use the first alert to check if any selected list item is identified correctly. But, at this point, it displays null and the strUsr line doesn't run at all.
I know this is actually a trivial task but am finding it hard to figure this inconsistency.
Please change your HTML element attribute.
You've mentioned 'mySelect' as class and in JS, you are calling it with ID reference.
You have to specify id of select element
<select class="mySelect" id="mySelect">
follow the code:
you need to give id to dropdown because you try to get data by id so...
<select id="mySelect" class="mySelect">
<option value="st1" selected="selected">Create new Stream</option>
<option value="st1">Stream 1</option>
<option value="st2">Stream 2</option>
<option value="st3">Stream 3</option>
<option value="st4">Stream 4</option>
</select>
I hope this will solve your issue....
Thanks...
var str = "";
$( "select option:selected" ).each(function() {
str += $( this ).text() + " ";
});
plunker: https://plnkr.co/edit/Q7yyVvUTaLYvPaDW5j7G?p=preview
<select id="mySelect" class="mySelect" >
<option value="st1" selected="selected">Create new Stream</option>
<option value="st1">Stream 1</option>
<option value="st2">Stream 2</option>
<option value="st3">Stream 3</option>
<option value="st4">Stream 4</option>
</select>
function choice() {
var choice=document.getElementById("mySelect");
alert(choice.value); // get value
var strUser = choice.options[choice.selectedIndex].text;
alert(strUser.toString());
}
You didn't have id in your html ,so I try by class name..
function choice() {
var choice=document.getElementsByClassName("mySelect");
var strUser = choice[0].options[choice[0].selectedIndex].text;
alert(strUser.toString());
}
I have two dropdown i want when i select for example from dropdown test1 option with value a
the second dropdown test2 show only the options that have value a
<select name="test1" id="test1" onchange="document.getElementById('test2').value=this.value">
<option value="Select">Select</option>
<option value="a">a</option>
<option value="b">b</option>
<option value="c">c</option>
</select>
<select id="test2" name="test2">
<option value="Select">Select</option>
<option value="a">a</option>
<option value="a">b</option>
<option value="a">c</option>
<option value="b">1</option>
<option value="b">2</option>
<option value="b">3</option>
<option value="c">c</option>
</select>
Or you can go this way:
jQuery(document).ready(function($){
var options = $('#test2 option');
$('#test1').on('change', function(e){
$('#test2').append(options);
$('#test2 option[value!=' + $(this).val() +']').remove();
});
});
fiddle
Since you've tagged this with JQuery, if I were to not alter your HTML at all, you could do this by changing the JS in your onchange from this:
document.getElementById('test2').value=this.value
. . . to this:
$("test2").find("option").hide();
$("test2").find("[value^='" + $("test1").val() + "']").show();
That would hid all of the options in the "test2" dropdown, and then show all of the ones that have a value that starts with the value of the currently selected "test1" option.
Note: this will also work if you chose to update the code to only use the "test1" values as a prefix for the "test2" values. ;)
UPDATE: Fixed a typo in the code.
Like it was said, you really don't want to do it this way as each option should have a unique value....but here is one way to accomplish it: jsFiddle
Using jQuery, you could check for the value of the selected option in test1, hide all those in test2 that don't match then show those with a matching value.
$('#test1').on('change', function() {
$('#test2 option:not(option[value='+$(this).val()+'])').hide();
$('#test2 option[value='+$(this).val()+']').show();
});
I have a little tag
<select name="txtTK" >
<option value="None">---</option>
<option value="Mat">Materials</option>
<option value="Cate">Category</option>
<option value="Cus">Customer</option>
<option value="Work">Work</option>
<Option value="Em">Employee</Option>
</select>
I want when i choose "Customer" option then the tag will show up the
the table of Custom. But the page does not reload.
I have no idea. Actually i tried w3c ajax but it seems not work with me.
Please give me an advice.
Thank in advance.
What your looking for is this change()
Heres an example you can try:
HTML:
<select class="target">
<option value="option1" selected="selected">Option 1</option>
<option value="option2">Option 2</option>
</select>
jQuery:
$(document).ready(function(){
$(".target").change(function(){
alert("The value has been changed.");
});
});
So all we are doing here is checking if the value has changed for the element within the class .target. If the value has changed then it will run the function.
You can use jquery. Try like this.
<select name="select_user_type" id="select_user_type">
<option>Select User</option>
<option value="reg_farmar.php">Farmer</option>
<option value="reg_expart.php">Expert</option>
<option value="reg_supervisor.php">Supervisor</option>
<option value="reg_coordinator.php">Coordinator</option>
<option value="reg_officer.php">Officer</option>
<option value="reg_manager.php">Manager</option>
</select>
<script>
$('#select_user_type').change(function () {
var str = "";
$("select option:selected").each(function () {
str += $(this).text() + " ";
});
var str = String($(this).val());
$('#div1').load(str);
})
.change();
</script>
I have 6 different select boxes and a text field which I need to fetch the value from and combine in to one text field using jQuery.
I understand essentially I will build the value for the targetTextField with a string like this: $('#targetTextField').val(opt1+opt2+opt3+opt4+opt5+opt6+textField);
What do I use to fetch the value of select#options1 and transform that in to opt1?
Would it be along the lines of opt1 = $('select#options1').val(); or am I heading in completely the wrong direction?
I've created a basic jsfiddle with just two options at:
http://jsfiddle.net/e2ScF/2/
jQuery
$(function() {
$("#options").change(function(){
var opt1 = $('select#options').val()
}$('#targetTextField').val(opt1+opt2);
});
$("#options2").change(function(){
var opt2 = $('select#options2').val()
}$('#targetTextField').val(opt1+opt2);
});
});
HTML
<select id="options">
<option value="" selected>Choose...</option>
<option value="opt1Value1" >Option 1</option>
<option value="opt1Value2" >Option 2</option>
</select>
<select id="options2">
<option value="" selected>Choose...</option>
<option value="opt2Value1" >Option 1</option>
<option value="opt2Value2" >Option 2</option>
</select>
<input type="text" id="targetTextField" name="targetTextField" size="31" tabindex="0" maxlength="99">
...but it doesn't appear to be working, so I've obviously misunderstood or missed something.
I made this demo for you, hope it helps
http://jsfiddle.net/e2ScF/5/
$(function() {
$("#options").change(function(){
setTarget() ; // Something has changed so lets rebuild the target
});
$("#options2").change(function(){
setTarget();// Something has changed so lets rebuild the target
});
});
// Just get the values you want and update the target
function setTarget(){
var tmp = $("#options").val();
tmp += $("#options2").val();
$('#targetTextField').val(tmp);
}
for dropdown try following
$('select option:selected').text()
have a look at this it should hopefully give you a pointer in what you need to do.
you can change the name to be a class and then just provide your format you want to display in the input. but from your question in presume it should be about that.
If you have different id for select box
var toalopt=$('select option1:selected').text();
toalopt+=$('select option2:selected').text();
toalopt+=$('select option3:selected').text();
toalopt+=$('select option4:selected').text();
toalopt+=$('select option5:selected').text();
toalopt+=$('select option6:selected').text();
document.getElementById('id where you want to club data').innerHTML=toalopt;
If you have same id
$(document).ready(function(){
$('#optionvalue).click(function(){
var values ='';
$('select[name="sameid"]').each(function(index,item){
values +=$(item).val() +' ';
});
$('id where you want to club data').val(values);
});
});
HTml will be normal select tag with id.
First of all, add a class to each of your select elements to better identify them as a group:
<select id="options" class="auto-updater">
<option value="" selected>Choose...</option>
<option value="opt1Value1" >Option 1</option>
<option value="opt1Value2" >Option 2</option>
</select>
<select id="options2" class="auto-updater">
<option value="" selected>Choose...</option>
<option value="opt2Value1" >Option 1</option>
<option value="opt2Value2" >Option 2</option>
</select>
<input type="text" id="targetTextField" name="targetTextField" size="31" tabindex="0" maxlength="99">
Then in jQuery, you can use map() to create an array of the values and display them:
$(".auto-updater").change(function() {
var values = $(".auto-updater").map(function() {
return ($(this).val() == "") ? null : $(this).val(); // ignore default option select
// return $(this).val(); // include all values
}).get();
$("#targetTextField").val(values.join(','));
});
Example fiddle
You can see that I've set this up to ignore select elements which are left on their default value. If you uncomment the line beneath it will include all selects, regardless of value chosen.
Minimal code required for you as below:
$(function() {
$("select").change(function(){
var opts=$('option:selected').val();
var oldVal=$('#targetTextField').val();
$('#targetTextField').val(oldVal+opts);
});
});
Find the jsfiddle demo here.