I am using Angular-Js and Jquery. I am implementing disable all checkboxes in the page after click on checkbox. But When I reload the page my page is reset, I don't want to reset disable checkboxes after reload. Suppose I checked checkbox after that reload the page checkbox should be checked.
Below is the code example.
$('#mainChk').on('click', function(){
var categories = $('.disableCheck');
categories.prop('disabled', !categories.prop('disabled'));
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input id="mainChk" type="checkbox" > Main
<input type="checkbox" class="disableCheck"> First
<input type="checkbox" class="disableCheck"> Second
<input type="checkbox" class="disableCheck"> Third
When I reload the page, All checkbox is reset.
I can use Angular-Js also. I set checkbox value in query parameter like true or false.
$location.search({ checkbox: disableCheck.prop('disabled') })
But I did not get desired output.
You can use something like sessionStorage or localStorage to save checkboxes' state after page reloading.
There is an angularjs library, that I use.
You also can find same thing for jQuery.
The best way is to call ajax on page load via API method though SELECT query of Save Table.
<input type="checkbox" class="disableCheck" value="First"> First
<input type="checkbox" class="disableCheck" value="Second"> Second
<input type="checkbox" class="disableCheck" value="Third"> Third
$(document).ready(function () {
$.ajax({
url: 'abc.asmx',// Call List Method of Save Checkbox Table
success: function (data) {
callback(data);
},
})
});
function callback(data) {
$.each(data.d, function (index, item) {
$("#checkboxId option[value='" + item.SaveCheckboxColumnName + "']").prop("checked",
true);
$("#checkboxId option[value='" + item.SaveCheckboxColumnName +
"']").prop("disabled",
true);
});
}
i'm triyng to validate a form.
In this form you've to choose at least one element by checkboxes, and I can't be sure about their quantity (it depends by elements number).
I need to enable the submit input if one or more checkboxes are checked, and disable it if there aren't any checkbox checked, how can I do?
Here's my code:
<form id="booking">
<input type="checkbox" name="room1" class="roomselect"/>
<input type="checkbox" name="room2" class="roomselect"/>
<input type="checkbox" name="room3" class="roomselect"/>
<input type="submit" value="Request" id="subm" />
</form>
//dom ready handler
jQuery(function ($) {
//form submit handler
$('#booking').submit(function (e) {
//check atleat 1 checkbox is checked
if (!$('.roomselect').is(':checked')) {
//prevent the default form submit if it is not checked
e.preventDefault();
}
})
})
You can use :checked selector along with .length to find checked checkbox count:
var len = $(".roomselect:checked").length;
if(len>0){
//more than one checkbox is checked
}
Demo
The :checked selector will Match all elements that are checked or selected.
You could try this
$("#subm").click(function(e){
if($(".roomselect:checked").length == 0){
e.preventDefault();
}
});
i suggest you to use "button" instead of "submit".
please follow this
HTML->
<form id="booking" action="https://www.google.co.in/search">
<input type="checkbox" value="facebook" name="q"/>
<input type="checkbox" value="gmail" name="q"/>
<input type="checkbox" value="stackoverflow" name="q"/>
<input type="button" value="Request" id="submit" />
$(function(){
$("#submit").click(function(e){
var number_of_checked_checkbox= $("input[name=q]:checked").length;
if(number_of_checked_checkbox==0){
alert("select any one");
}else{
$("#booking").submit();
}
});
});
Vanilla JavaScript equivalent of the jQuery way, using document.querySelector
if (document.querySelector('.roomselect:checked')) {
// somethings checked
}
Demo
The easiest method would be with javascript, fortunately someone's already done all the work here (with jQuery). All you'd need to do to adapt that example is to change #form_check to #booking.
Essentially what that example is doing is forcing itself before the submit action when it sees one is being tried for the form then it's searching inside the form element for any checkbox elements with a checked state and if it can't find any is sending a preventdefault to stop whatever the client/browser's default response to a submit action request would be or otherwise just sending as normal.
Also regarding the other answers, using === is more secure and returning false gives you some redundancy. Here's some discussion on what the return false adds.
Additionally don't use click() for this as you potentially run into use cases where you're technically submitting the form but aren't actually clicking it, like say when you hit enter
try this
var checked = false;
$(function(){
$('#subm').click(function(e){
checkall();
if(!checked){
e.preventDefault();
}
});
$('.roomselect').change(function(e){
checkall();
});
checkall();
});
function checkall()
{
checked = $('.roomselect:checked').length > 0;
$('#subm').prop('disabled',!checked);
}
$("#form_id").submit(function(e) {
var totalChecked = $('#div_id:input[type="checkbox"]:checked').length;
if(totalChecked < 1)
{
alert('Please select at least one checkbox before submit');
return false;
}
});
I want my #pass_through_card checkbox to be unchecked if my #ranged_pricing checkbox is unchecked as you should not be able to check #pass_through_card without having checked #ranged_pricing. The #pass_through_card checkbox does not have to be checked if #ranged_pricing is checked though, which is why I just put "Do Nothing." What am I doing wrong?
HTML
<input type="checkbox" id="ranged_pricing"/>
<label for="ranged_pricing">
Ranged Pricing
</label>
<input type="checkbox" id="pass_through_card">
<label for="pass_through_card">
Pass Through Card Association Dues and Assessments
</label>
Javascript
$(document).ready(function() {
if($('#ranged_pricing').prop(':checked')) {
//Do Nothing
} else {
$('#pass_through_card').removeAttr('checked');
}
});
It's should be just "checked", not ":checked", when you call .prop().
if ($('#ranged_pricing').prop('checked')) {
The ":checked" notation is for use in selector syntax. When you include the ":" in the call to .prop(), the result will always be false.
Try,
if($("#ranged_pricing").prop('checked') === true){
//do nothing
} else {
$("#pass_through_card").prop('checked', false);
}
You may want to bind a checked event to the ranged_pricing as well, to disable the pass_through_card element when it is not checked.
I have this:
<span id="social">
Facebook:
<input id="id_connected_to_facebook" type="checkbox" name="connected_to_facebook">
<br>
Twitter:
<input id="id_connected_to_twitter" type="checkbox" name="connected_to_twitter">
<br>
</span>
and with jQuery I would like to call a different URL for all the 4 possible actions (1: check facebook, 2: uncheck facebook, 3: check twitter, 4: uncheck twitter).
How would I do that?
I am not sure what you are going for. If you want to redirect to a page on clicking on the check box you can do this
Specify what url you want to call in your checkbox element using data attribute
<input type="checkbox" data-target="http://www.facebook.com" />
Script is
$(function(){
$("input[type='checkbox']").change(function(){
var item=$(this);
if(item.is(":checked"))
{
window.location.href= item.data("target")
}
});
});
Sample JsFiddle : http://jsfiddle.net/45aZ8/2/
EDIT : If you want to open it in a new window, use window.open method instead of updating the current url
Replace
window.location.href= item.data("target")
with
window.open(item.data("target")
http://www.w3schools.com/jsref/met_win_open.asp
EDIT 3 : Based on comment : If you want to load one url on Checked state and load another url on uncheck, you can do like this
Give 2 data attributes for each checkbox. One for checked state and one for unchecked
Facebook<input type="checkbox" data-target="http://www.facebook.com" data-target-off="http://www.google.com" /> <br/>
Twitter<input type="checkbox" data-target="http://www.twitter.com" data-target-off="http://www.asp.net" /> <br/>
And the script is
$(function(){
$("input[type='checkbox']").change(function(){
var item=$(this);
if(item.is(":checked"))
{
window.open(item.data("target"))
}
else
{
window.open(item.data("target-off"))
}
});
})
Working sample : http://jsfiddle.net/45aZ8/5/
$('input[type="checkbox"]').change(function() {
if($(this).is(':checked')) {
if($(this).attr('id') == 'connected_to_facebook') {
// possibility: 1
} else {
// possibility: 3
}
} else {
if($(this).attr('id') == 'connected_to_facebook') {
// possibility: 2
} else {
// possibility: 4
}
}
});
$('#id_connected_to_facebook, #id_connected_to_twitter').click(function(){
$.post('http://target.url', {this.id:this.checked});
});
now you'll get in $_POST either id_connected_to_facebook or id_connected_to_twitter and as a value it would be 1 or 0
I need to check the checked property of a checkbox and perform an action based on the checked property using jQuery.
For example, if the age checkbox is checked, then I need to show a textbox to enter age, else hide the textbox.
But the following code returns false by default:
if ($('#isAgeSelected').attr('checked')) {
$("#txtAge").show();
} else {
$("#txtAge").hide();
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="checkbox" id="isAgeSelected"/>
<div id="txtAge" style="display:none">
Age is selected
</div>
How do I successfully query the checked property?
How do I successfully query the checked property?
The checked property of a checkbox DOM element will give you the checked state of the element.
Given your existing code, you could therefore do this:
if(document.getElementById('isAgeSelected').checked) {
$("#txtAge").show();
} else {
$("#txtAge").hide();
}
However, there's a much prettier way to do this, using toggle:
$('#isAgeSelected').click(function() {
$("#txtAge").toggle(this.checked);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="checkbox" id="isAgeSelected"/>
<div id="txtAge" style="display:none">Age is something</div>
Use jQuery's is() function:
if($("#isAgeSelected").is(':checked'))
$("#txtAge").show(); // checked
else
$("#txtAge").hide(); // unchecked
Using jQuery > 1.6
<input type="checkbox" value="1" name="checkMeOut" id="checkMeOut" checked="checked" />
// traditional attr
$('#checkMeOut').attr('checked'); // "checked"
// new property method
$('#checkMeOut').prop('checked'); // true
Using the new property method:
if($('#checkMeOut').prop('checked')) {
// something when checked
} else {
// something else when not
}
jQuery 1.6+
$('#isAgeSelected').prop('checked')
jQuery 1.5 and below
$('#isAgeSelected').attr('checked')
Any version of jQuery
// Assuming an event handler on a checkbox
if (this.checked)
All credit goes to Xian.
I am using this and this is working absolutely fine:
$("#checkkBoxId").attr("checked") ? alert("Checked") : alert("Unchecked");
Note: If the checkbox is checked it will return true otherwise undefined, so better check for the "TRUE" value.
Use:
<input type="checkbox" name="planned_checked" checked id="planned_checked"> Planned
$("#planned_checked").change(function() {
if($(this).prop('checked')) {
alert("Checked Box Selected");
} else {
alert("Checked Box deselect");
}
});
$("#planned_checked").change(function() {
if($(this).prop('checked')) {
alert("Checked Box Selected");
} else {
alert("Checked Box deselect");
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<input type="checkbox" name="planned_checked" checked id="planned_checked"> Planned
Since jQuery 1.6, the behavior of jQuery.attr() has changed and users are encouraged not to use it to retrieve an element's checked state. Instead, you should use jQuery.prop():
$("#txtAge").toggle(
$("#isAgeSelected").prop("checked") // For checked attribute it returns true/false;
// Return value changes with checkbox state
);
Two other possibilities are:
$("#txtAge").get(0).checked
$("#txtAge").is(":checked")
This worked for me:
$get("isAgeSelected ").checked == true
Where isAgeSelected is the id of the control.
Also, #karim79's answer works fine. I am not sure what I missed at the time I tested it.
Note, this is answer uses Microsoft Ajax, not jQuery
If you are using an updated version of jquery, you must go for .prop method to resolve your issue:
$('#isAgeSelected').prop('checked') will return true if checked and false if unchecked. I confirmed it and I came across this issue earlier. $('#isAgeSelected').attr('checked') and $('#isAgeSelected').is('checked') is returning undefined which is not a worthy answer for the situation. So do as given below.
if($('#isAgeSelected').prop('checked')) {
$("#txtAge").show();
} else {
$("#txtAge").hide();
}
Use:
<input type="checkbox" id="abc" value="UDB">UDB
<input type="checkbox" id="abc" value="Prasad">Prasad
$('input#abc').click(function(){
if($(this).is(':checked'))
{
var checkedOne=$(this).val()
alert(checkedOne);
// Do some other action
}
})
This can help if you want that the required action has to be done only when you check the box not at the time you remove the check.
You can try the change event of checkbox to track the :checked state change.
$("#isAgeSelected").on('change', function() {
if ($("#isAgeSelected").is(':checked'))
alert("checked");
else {
alert("unchecked");
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="checkbox" id="isAgeSelected" />
<div id="txtAge" style="display:none">
Age is selected
</div>
Using the Click event handler for the checkbox property is unreliable, as the checked property can change during the execution of the event handler itself!
Ideally, you'd want to put your code into a change event handler such as it is fired every time the value of the check box is changed (independent of how it's done so).
$('#isAgeSelected').bind('change', function () {
if ($(this).is(':checked'))
$("#txtAge").show();
else
$("#txtAge").hide();
});
I ran in to the exact same issue. I have an ASP.NET checkbox
<asp:CheckBox ID="chkBox1" CssClass='cssChkBox1' runat="server" />
In the jQuery code I used the following selector to check if the checkbox was checked or not, and it seems to work like a charm.
if ($("'.cssChkBox1 input[type=checkbox]'").is(':checked'))
{ ... } else { ... }
I'm sure you can also use the ID instead of the CssClass,
if ($("'#cssChkBox1 input[type=checkbox]'").is(':checked'))
{ ... } else { ... }
I hope this helps you.
I believe you could do this:
if ($('#isAgeSelected :checked').size() > 0)
{
$("#txtAge").show();
} else {
$("#txtAge").hide();
}
I decided to post an answer on how to do that exact same thing without jQuery. Just because I'm a rebel.
var ageCheckbox = document.getElementById('isAgeSelected');
var ageInput = document.getElementById('txtAge');
// Just because of IE <333
ageCheckbox.onchange = function() {
// Check if the checkbox is checked, and show/hide the text field.
ageInput.hidden = this.checked ? false : true;
};
First you get both elements by their ID. Then you assign the checkboxe's onchange event a function that checks whether the checkbox got checked and sets the hidden property of the age text field appropriately. In that example using the ternary operator.
Here is a fiddle for you to test it.
Addendum
If cross-browser compatibility is an issue then I propose to set the CSS display property to none and inline.
elem.style.display = this.checked ? 'inline' : 'none';
Slower but cross-browser compatible.
This code will help you
$('#isAgeSelected').click(function(){
console.log(this.checked);
if(this.checked == true) {
$("#txtAge").show();
} else {
$("#txtAge").hide();
}
});
This works for me:
/* isAgeSelected being id for checkbox */
$("#isAgeSelected").click(function(){
$(this).is(':checked') ? $("#txtAge").show() : $("#txtAge").hide();
});
There are many ways to check if a checkbox is checked or not:
Way to check using jQuery
if (elem.checked)
if ($(elem).prop("checked"))
if ($(elem).is(":checked"))
if ($(elem).attr('checked'))
Check example or also document:
http://api.jquery.com/attr/
http://api.jquery.com/prop/
This is some different method to do the same thing:
$(document).ready(function (){
$('#isAgeSelected').click(function() {
// $("#txtAge").toggle(this.checked);
// Using a pure CSS selector
if ($(this.checked)) {
alert('on check 1');
};
// Using jQuery's is() method
if ($(this).is(':checked')) {
alert('on checked 2');
};
// // Using jQuery's filter() method
if ($(this).filter(':checked')) {
alert('on checked 3');
};
});
});
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<input type="checkbox" id="isAgeSelected"/>
<div id="txtAge" style="display:none">Age is something</div>
Use this:
if ($('input[name="salary_in.Basic"]:checked').length > 0)
The length is greater than zero if the checkbox is checked.
My way of doing this is:
if ( $("#checkbox:checked").length ) {
alert("checkbox is checked");
} else {
alert("checkbox is not checked");
}
$(selector).attr('checked') !== undefined
This returns true if the input is checked and false if it is not.
You can use:
if(document.getElementById('isAgeSelected').checked)
$("#txtAge").show();
else
$("#txtAge").hide();
if($("#isAgeSelected").is(':checked'))
$("#txtAge").show();
else
$("#txtAge").hide();
Both of them should work.
$(document).ready(function() {
$('#agecheckbox').click(function() {
if($(this).is(":checked"))
{
$('#agetextbox').show();
} else {
$('#agetextbox').hide();
}
});
});
1) If your HTML markup is:
<input type="checkbox" />
attr used:
$(element).attr("checked"); // Will give you undefined as initial value of checkbox is not set
If prop is used:
$(element).prop("checked"); // Will give you false whether or not initial value is set
2) If your HTML markup is:
<input type="checkbox" checked="checked" />// May be like this also checked="true"
attr used:
$(element).attr("checked") // Will return checked whether it is checked="true"
Prop used:
$(element).prop("checked") // Will return true whether checked="checked"
This example is for button.
Try the following:
<input type="button" class="check" id="checkall" value="Check All" /> <input type="button" id="remove" value="Delete" /> <br/>
<input type="checkbox" class="cb-element" value="1" /> Checkbox 1 <br/>
<input type="checkbox" class="cb-element" value="2" /> Checkbox 2 <br/>
<input type="checkbox" class="cb-element" value="3" /> Checkbox 3 <br/>
$('#remove').attr('disabled', 'disabled');
$(document).ready(function() {
$('.cb-element').click(function() {
if($(this).prop('checked'))
{
$('#remove').attr('disabled', false);
}
else
{
$('#remove').attr('disabled', true);
}
});
$('.check:button').click(function()
{
var checked = !$(this).data('checked');
$('input:checkbox').prop('checked', checked);
$(this).data('checked', checked);
if(checked == true)
{
$(this).val('Uncheck All');
$('#remove').attr('disabled', false);
}
else if(checked == false)
{
$(this).val('Check All');
$('#remove').attr('disabled', true);
}
});
});
The top answer didn't do it for me. This did though:
<script type="text/javascript">
$(document).ready(function(){
$("#li_13").click(function(){
if($("#agree").attr('checked')){
$("#saveForm").fadeIn();
}
else
{
$("#saveForm").fadeOut();
}
});
});
</script>
Basically when the element #li_13 is clicked, it checks if the element # agree (which is the checkbox) is checked by using the .attr('checked') function. If it is then fadeIn the #saveForm element, and if not fadeOut the saveForm element.
To act on a checkbox being checked or unchecked on click.
$('#customCheck1').click(function() {
if (this.checked) {
console.log('checked');
} else {
console.log('un-checked');
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="checkbox" id="customCheck1">
EDIT: Not a nice programming expression if (boolean == true) though .checked property might return other type variables as well..
It is better to use .prop("checked") instead. It returns true and false only.
I am using this:
<input type="checkbox" id="isAgeSelected" value="1" /> <br/>
<input type="textbox" id="txtAge" />
$("#isAgeSelected").is(':checked') ? $("#txtAge").show() : $("#txtAge").hide();
Though you have proposed a JavaScript solution for your problem (displaying a textbox when a checkbox is checked), this problem could be solved just by css. With this approach, your form works for users who have disabled JavaScript.
Assuming that you have the following HTML:
<label for="show_textbox">Show Textbox</label>
<input id="show_textbox" type="checkbox" />
<input type="text" />
You can use the following CSS to achieve the desired functionality:
#show_textbox:not(:checked) + input[type=text] {display:none;}
For other scenarios, you may think of appropriate CSS selectors.
Here is a Fiddle to demonstrate this approach.