I have checkboxes on my page for which I would like to send their state back to the database via ajax. I know how to use jquery with ajax and how to work with SELECT and OPTIONS, but I don't know to do the same things with several checkboxes and how to get the value from them.
Everything works when id is attached to one checkbox, but when i attach id to several checkboxes it doen'twork(except first check box)
Any ideas?
my code looks like this->
<form>
<div class="checkbox" >
<label><input type="checkbox" value="1" id="item">что то</label>
<label><input type="checkbox" value="1" id="item">Шорты</label>
<label><input type="checkbox" value="3" id="item">Классическая</label>
</div>
</form>
<script>
$(document).ready(function () {
$('#item').on('click',function(){
var name = $('#item').val();
$.post('load.php', {name:name}, function(data){
$('#name-data').html(data);
});
});
});
</script>
Use a class. Ids are expected to be unique on a single page. Classes are used to group elements together.
<tag id="a">A</tag><tag id="a">B</tag> $('#a')
becomes
<tag class="a">A</tag><tag class="a">B</tag> $('.a')
Id should be unique you can use class instead of Id.
I have 3 radio buttons in my web page, like below:
<label for="theme-grey">
<input type="radio" id="theme-grey" name="theme" value="grey" />Grey</label>
<label for="theme-pink">
<input type="radio" id="theme-pink" name="theme" value="pink" />Pink</label>
<label for="theme-green">
<input type="radio" id="theme-green" name="theme" value="green" />Green</label>
In jQuery, I want to get the value of the selected radio button when any of these three are clicked. In jQuery we have id (#) and class (.) selectors, but what if I want to find a radio button by its name, as below?
$("<radiobutton name attribute>").click(function(){});
Please tell me how to solve this problem.
This should do it, all of this is in the documentation, which has a very similar example to this:
$("input[type='radio'][name='theme']").click(function() {
var value = $(this).val();
});
I should also note you have multiple identical IDs in that snippet. This is invalid HTML. Use classes to group set of elements, not IDs, as they should be unique.
To determine which radio button is checked, try this:
$('input:radio[name=theme]').click(function() {
var val = $('input:radio[name=theme]:checked').val();
});
The event will be caught for all of the radio buttons in the group and the value of the selected button will be placed in val.
Update: After posting I decided that Paolo's answer above is better, since it uses one less DOM traversal. I am letting this answer stand since it shows how to get the selected element in a way that is cross-browser compatible.
$('input:radio[name=theme]:checked').val();
another way
$('input:radio[name=theme]').filter(":checked").val()
This works great for me. For example you have two radio buttons with the same "name", and you just wanted to get the value of the checked one. You may try this one.
$valueOfTheCheckedRadio = $('[name=radioName]:checked').val();
The following code is used to get the selected radio button value by name
jQuery("input:radio[name=theme]:checked").val();
Thanks
Adnan
For anyone who doesn't want to include a library to do something really simple:
document.querySelector('[name="theme"]:checked').value;
jsfiddle
For a performance overview of the current answers check here
I found this question as I was researching an error after I upgraded from 1.7.2 of jQuery to 1.8.2. I'm adding my answer because there has been a change in jQuery 1.8 and higher that changes how this question is answered now.
With jQuery 1.8 they have deprecated the pseudo-selectors like :radio, :checkbox, :text.
To do the above now just replace the :radio with [type=radio].
So your answer now becomes for all versions of jQuery 1.8 and above:
$("input[type=radio][name=theme]").click(function() {
var value = $(this).val();
});
You can read about the change on the 1.8 readme and the ticket specific for this change as well as a understand why on the :radio selector page under the Additional Information section.
If you'd like to know the value of the default selected radio button before a click event, try this:
alert($("input:radio:checked").val());
You can use filter function if you have more than one radio group on the page, as below
$('input[type=radio]').change(function(){
var value = $(this).filter(':checked' ).val();
alert(value);
});
Here is fiddle url
http://jsfiddle.net/h6ye7/67/
<input type="radio" name="ans3" value="help">
<input type="radio" name="ans3" value="help1">
<input type="radio" name="ans3" value="help2">
<input type="radio" name="ans2" value="test">
<input type="radio" name="ans2" value="test1">
<input type="radio" name="ans2" value="test2">
<script type="text/javascript">
var ans3 = jq("input[name='ans3']:checked").val()
var ans2 = jq("input[name='ans2']:checked").val()
</script>
If you want a true/false value, use this:
$("input:radio[name=theme]").is(":checked")
Something like this maybe?
$("input:radio[name=theme]").click(function() {
...
});
When you click on any radio button, I believe it will end up selected, so this is going to be called for the selected radio button.
I you have more than one group of radio buttons on the same page you can also try this to get the value of radio button:
$("input:radio[type=radio]").click(function() {
var value = $(this).val();
alert(value);
});
Cheers!
can also use a CSS class to define the range of radio buttons and then use the following to determine the value
$('.radio_check:checked').val()
This worked for me..
HTML:
<input type="radio" class="radioClass" name="radioName" value="1" />Test<br/>
<input type="radio" class="radioClass" name="radioName" value="2" />Practice<br/>
<input type="radio" class="radioClass" name="radioName" value="3" />Both<br/>
Jquery:
$(".radioClass").each(function() {
if($(this).is(':checked'))
alert($(this).val());
});
Hope it helps..
$('input:radio[name=theme]').bind(
'click',
function(){
$(this).val();
});
You might notice using class selector to get value of ASP.NET RadioButton controls is always empty and here is the reason.
You create RadioButton control in ASP.NET as below:
<asp:RadioButton runat="server" ID="rbSingle" GroupName="Type" CssClass="radios" Text="Single" />
<asp:RadioButton runat="server" ID="rbDouble" GroupName="Type" CssClass="radios" Text="Double" />
<asp:RadioButton runat="server" ID="rbTriple" GroupName="Type" CssClass="radios" Text="Triple" />
And ASP.NET renders following HTML for your RadioButton
<span class="radios"><input id="Content_rbSingle" type="radio" name="ctl00$Content$Type" value="rbSingle" /><label for="Content_rbSingle">Single</label></span>
<span class="radios"><input id="Content_rbDouble" type="radio" name="ctl00$Content$Type" value="rbDouble" /><label for="Content_rbDouble">Double</label></span>
<span class="radios"><input id="Content_rbTriple" type="radio" name="ctl00$Content$Type" value="rbTriple" /><label for="Content_rbTriple">Triple</label></span>
For ASP.NET we don't want to use RadioButton control name or id because they can change for any reason out of user's hand (change in container name, form name, usercontrol name, ...) as you can see in code above.
The only remaining feasible way to get the value of the RadioButton using jQuery is using css class as mentioned in this answer to a totally unrelated question as following
$('span.radios input:radio').click(function() {
var value = $(this).val();
});
I have a html form in which I have four radio buttons and one text box. What I am trying to do is - Once I click Test4 radio button, I want to disable node textbox so that nobody can type anything in that. I don't want to hide it, I just want to disable it.
But if anybody clicks either Test1 or Test2 or Test3 then anybody can type anything into it.
Here is my jsfiddle
Is this possible to do using jquery?
Yes, this is possible; I'd suggest:
$('input[type="radio"]').change(function(){
$('#node').prop('disabled', this.value === 'test4');
});
JS Fiddle demo.
This sets the disabled property of the #node element to true (if the changed-element has the value of 'test4'), and to false if it does not.
Further to the discussion in comments (wherein, basically, the OP revealed that checking other input elements of type="radio" caused the #node element to become re-enabled), I've amended the HTML to offer a simple means of associating the appropriate inputs with the specific text-input, using data-affects. giving the following HTML:
<input type="radio" name="data" id="test1" value="test1" data-affects="nodes" />Test1
<input type="radio" name="data" id="test2" value="test2" data-affects="nodes" />Test2
<input type="radio" name="data" id="test3" value="test3" data-affects="nodes" />Test3
<input type="radio" name="data" id="test4" value="test4" data-affects="nodes" />Test4
Coupled with the amended jQuery:
$('input[type="radio"][data-affects]').change(function(){
$('#' + this.getAttribute('data-affects')).prop('disabled', this.value === 'test4');
});
JS Fiddle demo.
References:
change().
prop().
To your jsfiddle, add on the top of js this piece of code:
$("input:radio[name=data]").change(function () {
var checkedValue = $(this).val();
if (checkedValue == "test4") {
$("#node").prop("disabled", true);
} else {
$("#node").prop("disabled", false);
}
});
You can also call the radio group by id instead of name:
$("input:radio[id=data]").change(function () { //first line of code
Live example here: http://jsfiddle.net/pw9nZ/
Hope this helps you...
Theo.
I need to select a radio input with name and value in jquery
In this example how you select element with name SiblingSex and value female
<form action="">
<input type="radio" name="SiblingSex" value="male">Male<br>
<input type="radio" name="SiblingSex" value="female">Female
<input type="radio" name="ParentSex" value="male">Male<br>
<input type="radio" name="ParentSex" value="female">Female
</form>
i need some thing like
$('input[name="SiblingSex"]' /*GENDER SELECTOR */)
You can add another attribute selector with this:
$('input[name="SiblingSex"][value="female"]').val();
the above line would give you values every time whether it is checked or not.
so if you only want to have the value when it is checked too then add :checked
$('input[name="SiblingSex"][value="female"]:checked').val();
Just have a look on the Demo on my JS Fiddle Code
Shows the two scenario:
1) when you want the value without selecting radio button.
2) when you want value after selecting radio button.
or may be the thing that you want is here::
JS Fiddle Demo
I have an input field like below
<input class="d_o" type="radio" value="super" name="old_or_new" checked="checked"> Get this value actually</input><br/>
I have to get the value of the input field i.e., Get this value actually, so tried the below jquery code
console.log($('.d_o').text());
But i am surprised that its returning nothing, and its working when tried to get the value like $('.d_o').val()
So how to get the text value from the above input field using jquery am i missing anything ?
The entirety of your <input> element is
<input class="d_o" type="radio" value="super" name="old_or_new" checked="checked">
The text that's after it, and the invalid html </input> are completely different nodes in the DOM tree. So val returns the value "super" as expected, but there's no text for text to return.
The .text() method cannot be used on form inputs or scripts
http://api.jquery.com/text/
Although I am not sure what approach jQuery follows on this : One explanation can be the "Content Model" specification of each HTMLElement .
Content model
A normative description of what content must be included as children and descendants of the element.
For example :
For Input type : http://www.w3.org/TR/html5/forms.html#the-input-element
Content model:Empty.
However for Title Element this is defined as
Content model : Text
http://www.w3.org/TR/html5/document-metadata.html#the-title-element
Eager to see the validations on this postulate :)
<input class="d_o" type="radio" value="super" name="old_or_new" checked="checked"> Get this value actually</input><br/>
This is not the correct way to handle the <input> tag. You should use :checked and .val() instead:
$(document).ready(function(){
$('#hey').on('click', function(event){
alert($('.check:checked').val());
});
});
<h2>Select old or new</h2><br>
<b>Old</b>:<br>
<input type="radio" class="check" name="old_or_new" value="old"><br>
<br>
<b>New</b>:<br>
<input type="radio" class="check" name="old_or_new" value="new"><br>
<br>
<input type="button" id="hey">
Check the fiddle: http://jsfiddle.net/MLWCK/