jquery checkbox help getting checkbox name and value - javascript

The Problem
I am trying to run some ajax on one my pages for my website, basically I have three checkboxes all of which on pageload are unselected, when a checkbox is clicked I need to be able load in via ajax the relevant HTML. This system is currently a PHP script that depending on what the POST is set returns a different view, so I think all I need to is send the POST via AJAX, but I need to do everytime a new checkbox is checked.
My HTML looks like this,
div class="segment">
<div class="label">
<label>Choose region: </label>
</div>
<div class="column w190">
<div class="segment">
<div class="input">
<input type="checkbox" checked="checked" class="radio checked" value="Y" name="area[Nationwide]" id="inp_Nationwide">
</div>
<div class="label ">
<label for="inp_Nationwide">Nationwide</label>
</div>
<div class="s"> </div>
</div>
</div>
<div class="column w190">
<div class="segment">
<div class="input">
<input type="checkbox" checked="checked" class="radio checked" value="Y" name="area[Lancashire]" id="inp_Lancashire">
</div>
<div class="label ">
<label for="inp_Lancashire">Lancashire</label>
</div>
<div class="s"> </div>
</div>
</div>
<div class="column w190">
<div class="segment">
<div class="input">
<input type="checkbox" checked="checked" class="radio" value="Y" name="area[West_Yorkshire]" id="inp_West_Yorkshire">
</div>
<div class="label ">
<label for="inp_West_Yorkshire">West Yorkshire</label>
</div>
<div class="s"> </div>
</div>
<div class="s"> </div>
</div>
</div>
My current attempt was to ascertain whether the input has been clicked so I have done this with my javascript, though this is probably wrong,
$('input.radio').click(function(){
if($(this).hasClass('clicked')) {
$(this).removeClass('clicked');
} else {
$(this).addClass('clicked');
}
});

You can do
$('input.radio').change(function(){ // will trigger when the checked status changes
var checked = $(this).attr("checked"); // will return "checked" or false I think.
// Do whatever request you like with the checked status
});
Also, if you say
three checkboxes all of which on
pageload are unselected
They should have checked=""

$("input:checkbox:checked")
will return all checkboxes that are currently checked.
The event handler .change() will bind to whenever the input changes, so for radios/checkboxes, it binds to whenever they're toggled, so no need to use click().
$(".radio:checkbox").change(function() {
var boxChecked = $(this).is(":checked");
if(boxChecked) {
...do ajax...
}
});
But this is kind of sloppy too, considering you could use the toggle() method instead. Plus, are you wanting to destroy the html when they uncheck? Or is this a one time deal?

$('input:checkbox').bind('click', function(e){
switch(e.target.id){
case 'someid':{
if($(this).is(':checked')){
//ajax call here
}
break;
}
case 'anotherid':{
// something
break;
}
}
});
Actually, you could change the arragment in checking first if the element
is checked or unchecked and then switch through the id's.. hmm

Related

Data bind visible is not working as expected

I am trying to do set the Data bind visibility on the section like below
<div class="col-md-6" data-bind="visible: !sameAsShippingAddress() || !hasCustomerAccNum()">
Both the sameAsShippingAddress and sameAsShippingAddress are the check box fields, when either one of the checkbox is selected the the div class should be invisible
Two check box fields are
<div class="form-check" style="float:left;">
<input class="form-check-input position-static" type="checkbox" id="HasCustomerAccNum" value="HasCustomerAccNum" data-bind="checked: hasCustomerAccNum" />
<label>Has Customer Account Number?</label>
</div>
<div class="form-check" style="float:right;">
<input class="form-check-input position-static" type="checkbox" id="SameAsShippingAddress" value="SameAsShippingAddress" data-bind="checked: sameAsShippingAddress" />
<label>Billing address is same as Shipping Address</label>
</div>
and the js file, I set their fields as
self.sameAsShippingAddress = ko.observable(false);
self.hasCustomerAccNum = ko.observable(false);
The issue is only when both the fields are checked the div class is invisible
What am I missing here. I want the right side section to be invisible even when one check box is checked
<div class="col-md-6" data-bind="visible: !sameAsShippingAddress() && !hasCustomerAccNum()">

radiobuttons and conditional checkbox

I have 2 radio-buttons and a checkbox.
When the first option is "personalized" the checkbox "hidden" should be automatically checked.
<div class="field-type-list-text field-name-field-main-download-category field-widget-options-buttons form-wrapper" id="edit-field-main-download-category"><div class="form-item form-type-radios form-item-field-main-download-category-und">
<label for="edit-field-main-download-category-und">Main Download Category </label>
<div id="edit-field-main-download-category-und" class="form-radios"><div class="form-item form-type-radio form-item-field-main-download-category-und">
<input type="radio" id="edit-field-main-download-category-und-general" name="field_main_download_category[und]" value="general" class="form-radio" /> <label class="option" for="edit-field-main-download-category-und-general">General </label>
</div>
<div class="form-item form-type-radio form-item-field-main-download-category-und">
<input type="radio" id="edit-field-main-download-category-und-personalized" name="field_main_download_category[und]" value="personalized" class="form-radio" /> <label class="option" for="edit-field-main-download-category-und-personalized">Personalized </label>
</div>
</div>
</div>
</div><div class="field-type-list-boolean field-name-field-hidden field-widget-options-onoff form-wrapper" id="edit-field-hidden"><div class="form-item form-type-checkbox form-item-field-hidden-und">
<input type="checkbox" id="edit-field-hidden-und" name="field_hidden[und]" value="1" class="form-checkbox" /> <label class="option" for="edit-field-hidden-und">Hidden </label>
</div></div>
I've made this script, but it is not working:
jQuery(document).ready(function () {
if ( $('.personalized input').val() = "personalized" ) {
$('.checkbox input').attr('checked');
}
});
You have few problems. As others already pointed out, you are checking document.ready instead of onChange event. So it checks on page load, instead of checking on radio button state change.
Another problem is that you are checking $('.personalized input') value, but you do not have personalized class in your html.
Your radio buttons have common class form-radio. So you can use it as a selector.
$('.form-radio').on("change", function(){
if ( $(this).val() == "personalized" ) {
$('.form-checkbox').prop('checked', true);
}
else{
$('.form-checkbox').prop('checked', false);
}
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="field-type-list-text field-name-field-main-download-category field-widget-options-buttons form-wrapper" id="edit-field-main-download-category"><div class="form-item form-type-radios form-item-field-main-download-category-und">
<label for="edit-field-main-download-category-und">Main Download Category </label>
<div id="edit-field-main-download-category-und" class="form-radios"><div class="form-item form-type-radio form-item-field-main-download-category-und">
<input type="radio" id="edit-field-main-download-category-und-general" name="field_main_download_category[und]" value="general" class="form-radio" /> <label class="option" for="edit-field-main-download-category-und-general">General </label>
</div>
<div class="form-item form-type-radio form-item-field-main-download-category-und">
<input type="radio" id="edit-field-main-download-category-und-personalized" name="field_main_download_category[und]" value="personalized" class="form-radio" /> <label class="option" for="edit-field-main-download-category-und-personalized">Personalized </label>
</div>
</div>
</div>
</div><div class="field-type-list-boolean field-name-field-hidden field-widget-options-onoff form-wrapper" id="edit-field-hidden"><div class="form-item form-type-checkbox form-item-field-hidden-und">
<input type="checkbox" id="edit-field-hidden-und" name="field_hidden[und]" value="1" class="form-checkbox" /> <label class="option" for="edit-field-hidden-und">Hidden </label>
</div></div>
This part:
else{
$('.form-checkbox').prop('checked', false);
}
you only need if you want to un-check if not personalized.
Also take care of .prop() which is used for jQuery 1.6+. For lower versions use .attr()
You have to specify when do you want the script to check if the radio is checked or not. If you use just document.ready() function, it will check it only once, when the site is loaded and since it's not checked - the checkbox won't be checked neither.
You can use following approach: check it with every click event on the radio button.
$('.personalized').click(function() {
if ($(this).is(':checked')) {
$('.checkbox').attr('checked', 'checked');
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type='radio' class='personalized'>
<input type='checkbox' class='checkbox'>
Simply you need to do it in ready function
jQuery(document).ready(function () {
if ($(".personalized").is(":checked") ) {
$('.checkbox').attr('checked', 'checked');
}
});
if you want them to apply on page load.
You have several problems here:
The code as written only runs on page load. Since you said you want the checkbox to be "automatically" checked, you should attach a change handler to the radio array.
.val() called on a radio array returns the value of the first element in the selected set, regardless of which one is checked. You need to add :checked to your selector to filter down to the one selected radio element.
Your single equals sign is the assignment operator and should be replaced with ===.
.attr('checked') returns the value of the checked attribute. There are actually two problems here: attr only looks at the attribute initially assigned to the element; you need to use prop instead to update the checked property. The second problem is that the one-parameter attr function is used to read the attribute. You want the two-parameter function to set it.
Here's a working example:
jQuery(document).ready(function () {
$('input[name="radio"]').on('change',function(){
if ( $('input[name="radio"]:checked').val() === "personalized" ) {
$('#hidden').prop('checked','checked');
} else {
$('#hidden').prop('checked','');
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="radio" name="radio" id="personalized" value="personalized"/><label for="personalized">personalized</label><br/>
<input type="radio" name="radio" id="general" value="general"/><label for="general">general</label><br/>
<input type="checkbox" id="hidden" name="hidden"/><label for="hidden">hidden</label>

Disable all previous checkboxes except last one, enable preceding checkbox when other enabled

I've searched a while for this, but can't find a solution. Basically, I have a simple form, that will by dynamic (up to 20 cycles can exist for an ID). The validation to delete the Cycles, say that there are 3 of them, 1, 2, and 3, is that you can delete #3, but you cannot delete #2 until you delete #3, and you cannot delete #1 until you delete #2.
So, on the front-end, I was thinking of a design that would disable all but the last checkbox, then as you check the last checkbox, the next previous checkbox would be enabled and be able to be checked, and so on. Then, the user would delete (through a Bootbox modal submit button callback, which is even a bit trickier).
Here's a simple form I was using to test with:
<form class="form-horizontal" id="deleteCycles" action="/deleteCyclesScript" method="post">
<div class="col-md-12" style="margin-top: 30px; margin-bottom: 10px;">
<div class="checkbox"><label><input id="cycle1" type="checkbox" value="cycle1" class="dynamicCheckboxes">Cycle 1</label></div>
<div class="checkbox"><label><input id="cycle2" type="checkbox" value="cycle2" class="dynamicCheckboxes">Cycle 2</label></div>
<div class="checkbox"><label><input id="cycle3" type="checkbox" value="cycle3" class="dynamicCheckboxes">Cycle 3</label></div>
</div>
</form>
How can you dynamically write JavaScript (I'm using jQuery 1.12.4) to achieve this? I'm hoping to have something in the ID's that can almost make a chain of enabling the checkboxes -- the last one being enabled by default since it's not dependent on others to be deleted, but, then enabling the other checkboxes on the fly as the one above it is enabled.
Can anyone help with this?
Thanks so much!
So you can do this using jquery:
Initially set all but the last checkbox disabled
Use a checkbox listener that will:
a. enable the preceeding checkbox on ticking
b. disable all preceeding checkbox when unticking
See demo below:
// Initialize : disable all but the last checkbox
$('#deleteCycles .checkbox:last').prevAll().each(function() {
$(this).find('input').attr('disabled', 'disabled');
});
// checbox listener
$('#deleteCycles .checkbox input').change(function() {
if ($(this).is(":checked")) {
// enable the checkbox just above
$(this).closest('.checkbox').prev('.checkbox').find('input').removeAttr('disabled');
} else {
// disable all checkboxes preceeding
$(this).closest('.checkbox').prevAll().each(function() {
$(this).find('input').attr({
'disabled': 'disabled',
'checked': false
});
});
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<form class="form-horizontal" id="deleteCycles" action="/deleteCyclesScript" method="post">
<div class="col-md-12" style="margin-top: 30px; margin-bottom: 10px;">
<div class="checkbox">
<label>
<input id="cycle1" type="checkbox" value="cycle1" class="dynamicCheckboxes">Cycle 1</label>
</div>
<div class="checkbox">
<label>
<input id="cycle2" type="checkbox" value="cycle2" class="dynamicCheckboxes">Cycle 2</label>
</div>
<div class="checkbox">
<label>
<input id="cycle3" type="checkbox" value="cycle3" class="dynamicCheckboxes">Cycle 3</label>
</div>
</div>
</form>
$(function () {
$(':checkbox').attr('disabled', true).each(function (index, element) {
$(this).data('index', index);
}).change(function () {
if($(this).is(':checked'))
{
$(this).parents('.checkbox:first').prev().find(':checkbox').attr('disabled', null);
}
else
{
$(this).parents('form:first').find(':checkbox:lt(' + $(this).data('index') + ')').attr('checked', false).attr('disabled', true);
}
}).last().attr('disabled', null);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<form class="form-horizontal" id="deleteCycles" action="/deleteCyclesScript" method="post">
<div class="col-md-12" style="margin-top: 30px; margin-bottom: 10px;">
<div class="checkbox"><label><input id="cycle1" type="checkbox" value="cycle1" class="dynamicCheckboxes">Cycle 1</label></div>
<div class="checkbox"><label><input id="cycle2" type="checkbox" value="cycle2" class="dynamicCheckboxes">Cycle 2</label></div>
<div class="checkbox"><label><input id="cycle3" type="checkbox" value="cycle3" class="dynamicCheckboxes">Cycle 3</label></div>
</div>
</form>
Assuming sequential IDs, something like this might work.
Add a data-attribute that lets you reference the checkbox that the currently-active checkbox "depends on":
<form class="form-horizontal" id="deleteCycles" action="/deleteCyclesScript" method="post">
<div class="col-md-12" style="margin-top: 30px; margin-bottom: 10px;">
<div class="checkbox">
<label>
<input id="cycle1" type="checkbox" value="cycle1" class="dynamicCheckboxes" />
Cycle 1
</label>
</div>
<div class="checkbox">
<label>
<input id="cycle2" type="checkbox" value="cycle2" class="dynamicCheckboxes" data-dependsOn="#cycle1" />
Cycle 2
</label>
</div>
<div class="checkbox">
<label>
<input id="cycle3" type="checkbox" value="cycle3" class="dynamicCheckboxes" data-dependsOn="#cycle2" />
Cycle 3
</label>
</div>
</div>
</form>
Then, when the checkbox is toggled, check both it's checkstate and the "depends on" checkbox's checkstate:
$('.dynamicCheckboxes').on('change', function(e){
// hold reference to the current checkbox
var _this = $(this);
if(!_this.is(':checked')){
var dependsOn = _this.data('dependsOn');
if(dependsOn != ""){
if($(dependsOn).is(':checked')){
e.preventDefault();
// display some sort of error message
}
}
}
});
You could use the jQuery .prev function, as well, if your markup supports it (if the dependent checkbox always precedes the checkbox you're checking, in the markup).

how to remove form input data on clicking on checkbox?

If user is selecting file and after it if user is unchecking checkbox than file is also at there so I want to make it like a when user is unchecking checkbox than after file is must be remove. How can I make it? And which event handler is perfect for checkbox?
HTML CODE:
<div class="checkbox">
<label for="email">electronics
<input type="checkbox" name="product_category[]" value="electronics" id="product_category" class="electronics">
</label>
</div>
<div class="form-group" id="efileu" style="display:none;" >
<input type="file" name="checkboxfile0" id="efile" style="width:100%">
</div>
<div class="checkbox">
<label for="email">kitchen
<input type="checkbox" name="product_category[]" value="kitchen" id="product_category" class="kitchen">
</div>
<div class="form-group" id="kfileu" style="display:none;" >
<input type="file" name="checkboxfile1" id="kfile" style="width:100%">
</div>
<script>
$(".electronics").click(function(){
if(!$("#efileu").is(":visible")){
$("#efileu").show();
}
else{
$("#efileu").hide();
$("#efileu").val();
}
});
$(".kitchen").click(function(){
if(!$("#kfileu").is(":visible")){
$("#kfileu").show();
}
else{
$("#kfileu").hide();
}
});
</script>
use this one line of jQuery in your existing code that seems fine to me
else{
$("#efileu").hide();
$("#efileu").replaceWith($("#efileu").val('').clone(true)); //clear the values
}
else{
$("#kfileu").hide();
$("#kfileu").replaceWith($("#kfileu").val('').clone(true));//clear the values
}
Found a workaround that works:
$(".electronics").click(function() {
if (!$("#efileu").is(":visible")) {
$("#efileu").show();
} else {
var $el = $('#efileu');
$el.wrap('<form>').closest('form').get(0).reset();
$el.unwrap();
$("#efileu").hide();
}
Here's a JSFiddle to see it in action. Credit goes to Gyrocode.

Hide content if a radio button is checked

I am trying to hide a paragraph if a radio button is checked using a change() function but it's not working. What am I missing?
$(".js-rate-type").change(function(){
if(this.checked){
$(".js-rate-type-content").show();
}else{
$('.js-rate-type-content').hide();
}
}).change();
jsFiddle
The change event handler does not get triggered when you select another radio with the same name, so you need to bind the handle to both the radio buttons
$('input[name="optionsRadios"]').change(function() {
$(".js-rate-type-content").toggle($('.js-rate-type').is(':checked'));
}).change(); //trigger change to see changes
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="container">
<div class="row">
<div class="col-md-6">
<form action="#">
<div class="radio">
<label>
<input type="radio" name="optionsRadios" class="js-rate-type">Daily
</label>
</div>
<div class="radio">
<label>
<input type="radio" name="optionsRadios">Fixed
</label>
</div>
</form>
<p class="js-rate-type-content">Lorem ipsum dolor sit.</p>
</div>
</div>
</div>
Bind change event to input[name=optionsRadios] instead of .js-rate-type and toggle .js-rate-type-content with the checked status of .js-rate-type.
$("input[name=optionsRadios]").change(function(){
var rateType=$('.js-rate-type')[0];
$(".js-rate-type-content").toggle(rateType.checked);
}).change()
You need to tell the jQuery to run/bind by putting it inside a $(document).ready(function() {}); wrapper.
$(document).ready(function() {
$(".js-rate-type").change(function(){
if(this.checked){
$(".js-rate-type-content").show();
}else{
$('.js-rate-type-content').hide();
}
}).change(); //trigger change to see changes
})

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