At this site there is a 'Cholera facilities"checkbox for triggering the display of a map layer.
The problem is how the checkbox behaves. It is reverse what I expect-- it triggers upon being unchecked, rather than checked?
<div><input type="checkbox" id="cholera_control" name="cholera_control" />
<label for="cholera_control">Cholera Facilities</label></div>
Just reverse the if with the else.
Instead of:
if (showCholera) {
kmlLayerCTF.setMap(null);
} else {
kmlLayerCTF.setMap(map);
}
do:
if (showCholera) {
kmlLayerCTF.setMap(map);
} else {
kmlLayerCTF.setMap(null);
}
This is happening because your initial value is false.
var showCholera = false;
...then you're reversing it before the if() statement:
showCholera = !showCholera;
...so when the if() runs, showCholera is true, and the if is executed instead of the else.
Change
<input type="checkbox" id="cholera_control" name="cholera_control" />
<input type="checkbox" name="mc-cb" id="mc-cb">
to:
<input type="checkbox" check="checked" id="cholera_control" name="cholera_control" />
<input checked="checked" type="checkbox" name="mc-cb" id="mc-cb">
Related
First of all: http://jsfiddle.net/1q5st19f/
I have a checkbox group where if all the child checkboxes (countries) are checked, the parent checkbox (region) becomes checked as well. Likewise, if the parent checkbox is unchecked, the child checkboxes should be unchecked, too. I found a script that worked perfectly until I styled the checkboxes with prettyCheckable (from http://arthurgouveia.com/prettyCheckable/).
If I remove prettyCheckable, it works. If I add it, it's correctly styled but won't work anymore. What am I doing wrong? I tried to rename the classes but that didn't work either.
The basic markup is like
<fieldset>
<input type="checkbox" class="parentCheckBox" /> Africa
<div class="content">
<input type="checkbox" value="1" name="cntrs[]" class="childCheckBox" data-label=""> Algeria<br />
<input type="checkbox" value="2" name="cntrs[]" class="childCheckBox" data-label=""> Angola<br />
<input type="checkbox" value="3" name="cntrs[]" class="childCheckBox" data-label=""> Benin<br />
</div>
</fieldset>
prettyCheckable made this a bit tricky. It says in the documentation that you can use $('#myInput').prettyCheckable('check'); but I could not get it to work. So I just used the anchors class checked instead to determine if the checkbox is checked.
This may not be the most pretty implementation but it's working. You should make the code more modular an maybe reconsider some of the choices I quickly made.
First I removed the childCheckBox from the HTML and initialized prettyCheckable with options, so I could get the class to the wrapper div:
// make childCheckboxes prettyCheckable
$('.content input:checkbox').each(function () {
$(this).prettyCheckable({
// add this class to the wrapper div created by prettyCheckable
customClass: "childCheckBox"
});
});
Same with the parentCheckbox:
// make parentCheckBox prettyCheckable
$('input:checkbox.parentInput').prettyCheckable({
// add this class to the wrapper div created by prettyCheckable
customClass: "parentCheckBox"
});
I also changed childCheckBox click event to do the functionality you wanted
//clicking the last unchecked or checked checkbox should check or uncheck the parent checkbox
$('.childCheckBox').click(function () {
var $parentAnchor = $(this).parents('fieldset:eq(0)').find('.parentCheckBox a');
var $childAnchors = $(this).parents('fieldset:eq(0)').find('.childCheckBox a');
var $thisAnchor = $(this).find('a');
var parentIsChecked = $parentAnchor.hasClass('checked');
var thisIsChecked = $thisAnchor.hasClass('checked');
var isLastOne = true;
// loop through all childCheckBoxes and determine if this is the last one checked or unchecked
$childAnchors.each(function (index) {
if ((!thisIsChecked && $(this).hasClass('checked'))
|| (thisIsChecked && !$(this).hasClass('checked'))) {
isLastOne = false;
}
});
// if the childCheckBox was the last one, change the state of the parentCheckBox
if (isLastOne && thisIsChecked) {
$parentAnchor.addClass('checked');
} else if (isLastOne && !thisIsChecked) {
$parentAnchor.removeClass('checked');
}
});
I was pretty tired when forking this, so I hope I didn't do any stupid mistakes. If you have any questions about the code, please ask.
Fiddle: http://jsfiddle.net/1q5st19f/17/
This took me forever to debug. There were a number of issues most importantly of which was that you are using a very backlevel version of prettyCheckable. However, after changing to the latest level and starting again, I have a fully working solution for you. See this jsFiddle.
I started again from the beginning but here is the code:
HTML
<fieldset>
<div class="group">
<input type="checkbox" class="parentCheckBox" data-label="Africa"/>
<div class="content">
<input type="checkbox" value="1" class="childCheckBox" data-label="Algeria" />
<br />
<input type="checkbox" value="2" class="childCheckBox" data-label="Angola" />
<br />
<input type="checkbox" value="3" class="childCheckBox" data-label="Benin" />
<br />
</div>
</div>
</fieldset>
JavaScript
$(function () {
$('input:checkbox').each(function () {
$(this).prettyCheckable();
});
$(".parentCheckBox").change(function (e) {
var checked = $(this).prop("checked");
$(".childCheckBox", $(this).closest(".group")).each(function (i, e) {
$(e).prettyCheckable(checked?"check":"uncheck");
});
});
$(".childCheckBox").change(function(e) {
var checkedCount = unCheckedCount = 0;
$(e.currentTarget).closest(".content").find(".childCheckBox").each(function(i,e2) {
if ($(e2).prop("checked")) {
checkedCount++;
} else {
unCheckedCount++;
}
});
if (unCheckedCount == 0) {
$(e.currentTarget).closest(".group").find(".parentCheckBox").prettyCheckable("check");
} else {
$(e.currentTarget).closest(".group").find(".parentCheckBox").prettyCheckable("uncheck");
}
});
});
I'll be delighted to answer any questions you may have.
The semantics of checking or unchecking all children could have an alternate solution shown in this jsFiddle. It talks to when the parent checkbox should be checked or unchecked as a function of the children.
What prettyCheckable does behind the scenes, is it hides the checkboxes and adds an a tag to the page, and updates the hidden checkboxes when the a tag is clicked. The a tag also gets a style of checked when the checkbox is checked. There appears to be a bug though, that the checked class is not added to or removed from the a tag when the state of the checkboxes is manipulated through code. Anyway, your JavaScript was correctly updating the state of the checkboxes, but prettyCheckable wasn't detecting that and failed to update its classes.
Anyway, I rewrote your script so all the logic is handled in 1 event handler, and I included a work-around for the prettyCheckable bug, but I left your HTML alone so you should only have to replace your JavaScript code. See below for a runnable example:
$('input:checkbox').prettyCheckable();
$("input:checkbox").on("change", function() {
var checkbox = $(this);
var parent = checkbox.closest("fieldset");
if (checkbox.hasClass("parentCheckBox")) {
//this is a parent, check or uncheck all children
var isChecked = checkbox.is(":checked");
//add checked attribute in the DOM and add the class for prettyCheckable on all children
parent.find("input.childCheckBox:checkbox").prop("checked", isChecked).each(function() {
if (isChecked)
$(this).next("a").addClass('checked');
else
$(this).next("a").removeClass('checked');
});
} else {
//this is a child, check or uncheck the parent
var parentCheckbox = parent.find("input.parentCheckBox:checkbox");
var isChecked = !parent.find("input.childCheckBox:checkbox").get().some(function(item) {
return !$(item).is(":checked");
});
//add the checked attribute to the dom and add the class for prettyCheckable
parentCheckbox.prop("checked", isChecked);
if (isChecked)
parentCheckbox.next("a").addClass('checked');
else
parentCheckbox.next("a").removeClass('checked');
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="http://qfuse.com/js/utils/prettyCheckable/prettyCheckable.js"></script>
<link href="http://arthurgouveia.com/prettyCheckable/js/prettyCheckable/dist/prettyCheckable.css" rel="stylesheet"/>
<fieldset>
<input type="checkbox" class="parentCheckBox" /> Africa
<div class="content">
<input type="checkbox" value="1" name="cntrs[]" class="childCheckBox" data-label="" /> Algeria<br />
<input type="checkbox" value="2" name="cntrs[]" class="childCheckBox" data-label="" /> Angola<br />
<input type="checkbox" value="3" name="cntrs[]" class="childCheckBox" data-label="" /> Benin<br />
</div>
</fieldset>
I'm trying to implement a "Select All" checkbox on an HTML form using JQuery 1.9.1. As far as I can tell, it should be as simple as using .prop to check or uncheck a checkbox, but nothing I try seems to work.
Please see below for what I have tried, I've commented out some failed attempts out and I cannot get this to work for even one checkbox. What is the correct way to do this? Am I missing something, possibly in the HTML?
HTML
<input type="checkbox" id="cb_select_all" name="cb_select_all" value="t" />
<label for="cb_select_all"><b>Select All</b>
</label>
<br />
<input type="checkbox" name="cb1" id="cb1" class="cb_all" value="t" />
<label for="cb1">1 test</label>
<br />
<input type="checkbox" name="cb2" id="cb2" class="cb_all" value="t" />
<label for="cb2">2 test</label>
Javascript
$(document).ready(function () {
$("#cb_select_all").change(cb_select_all_onchange);
}); //end $(document).ready
function cb_select_all_onchange() {
if ($("#cb_select_all").checked) {
//$("#cb1").prop("checked", true);
//$(".cb_all").each(function(){ this.checked = true; });
//document.getElementById("cb1").checked = true;
$(".cb_all").prop("checked", true);
} else {
$("#cb1").prop("checked", false);
}
}
http://jsfiddle.net/mLnb5qed/5/
Thanks,
jdt
Change your if to this
if ($("#cb_select_all")[0].checked) { }
( or ) if ($("#cb_select_all").is(":checked")) { }
The problem is the first one is a property of native element and not jQuery object. Accessing it by an index gives you the ability to use that property. The second way is the jQuery way.
Use
$("#cb_select_all").is(':checked');
This worked for me:
$(document).ready(function () {
$("#cb_select_all").change(function () {
if ($("#cb_select_all").prop("checked") == true) {
$('.cb_all').prop('checked', true);
}
else {
$('.cb_all').prop('checked', false);
}
});
});
What happens:
Check if the "cb_select_all" checkbox changes state
if the "checked" state is set to true
check all "cb_all" checkboxes
else
uncheck all "cb_all" checkboxes
I'm coding a form which gets the value for some search process .. I'm coding two text fields for the user to give the input on any one of them.But only one of them would enable at a time .. user can chose the option by checking check box. by default one of the field should b enable, when the check-box is checked it(the one which was initially enable) gets disabled and other gets enabled, and vice versa when the check-box is unchecked.
Here is the fiddle:
http://jsfiddle.net/awBvq/224/
This will fix your problem
HTML :
<input type="text" name="" />
<input type="checkbox" name="" />
<input type="text" name="" disabled="'disabled'"/>
JS :
$(':checkbox').change(function(){
if ($(this).is(':checked')) {
$(this).prev().attr('disabled','disabled');
$(this).next().removeAttr('disabled');
} else {
$(this).next().attr('disabled','disabled');
$(this).prev().removeAttr('disabled');
}
});
It could have been done simpler, but this is just a hint:
if($("#CheckBox").is(":checked"))
{
$("#Field1").attr("disabled","disabled");
$("#Field2").removeAttr("disabled");
}
else
{
$("#Field1").removeAttr("disabled");
$("#Field2").attr("disabled","disabled");
}
Simple logic:
(1) By default disable any one of the textbox.
(2) Using .prev() or .next(), check whether anyone is disabled.
(3) if so, enable it and disable the other else vice versa.
HTML:
<input type="text" name="" disabled/> <!--By default it is disabled-->
<input type="checkbox" name="" />
<input type="text" name="" />
Javascript:
$(':checkbox').change(function () {
if ($(this).prev().is(':disabled')) {
$(this).prev().removeAttr('disabled');
$(this).next().attr('disabled', 'disabled');
} else {
$(this).next().removeAttr('disabled');
$(this).prev().attr('disabled', 'disabled');
}
});
Check this JSFiddle
I am fairly new to javascript programming and just can't seem to get this right even after going through the questions here, basically i have a checkbox which displays two radio buttons only when it is unselected
<span><strong>Not Available</strong></span>
<input type="checkbox" placeHolder="" id="available" style="" name="available" required value="Yes"/>
<span style=" visibility: hidden; " id="BACSSpan">BACS</span><input type="radio" id="BACS" name="paymentSpecified" value="BACS" style="visibility: hidden;">
<span style="visibility: hidden;" id="ChequeSpan">Cheque</span> <input type="radio" id="Cheque" name="paymentSpecified" value="Cheque" style=visibility: hidden;">
I have used the following javascript:
$('body').on('click', '#available', function ()
{
if ($('#available:checked'))
{
$('#BACSSpan').css('visibility','hidden');
$('#BACS').css('visibility','hidden');
$('#ChequeSpan').css('visibility','hidden');
$('#Cheque').css('visibility','hidden');
} else
{
$('#BACSSpan').css('visibility','visible');
$('#BACS').css('visibility','visible');
$('#ChequeSpan').css('visibility','visible');
$('#Cheque').css('visibility','visible');
}
})
What it should do is alternate between showing the two radio buttons, but it is not doing anything, but when i reverse the order of the condition i.e opposite of what i want; then the required functionality happens once only
The thing is that $('#available:checked') is a jQuery object - not a bool value. To get bool value you should do:
if ($(this).is(':checked')) {
...
}
else {
...
}
If you don't want to change your code a lot, you can simply add .length.
if ($('#available:checked').length) {
//Do Something
}
I'm pretty new to JS and maybe this is a very banal questions but I still can't figure out what's wrong. I have this simple html code:
<span>1</span>
<input id="check1" type="radio" value="a1"/>
<span>2</span>
<input id="check2" type="radio" value="b2"/>
<span>3</span>
<input id="check3" type="radio" value="c3"/>
<span>4</span>
<input id="check4" type="radio" value="a4"/>
<span>5</span>
<input id="check5" type="radio" value="b5"/>
<input id="red" type="button" value="Go" onclick=""/>
What i would like to achieve is, based on the radio checked change the onclick property.
For example, if check1 and check2 are checked go to google.com, if check1 and check3 go to jsfiddle.net etcetera. So I wrote a simple Javascript:
window.onchange = function redirect(){
if (document.getElementById('check1').checked && document.getElementById('check2').checked) {
location.href='www.google.com';
// document.getElementById('red').onclick="www.google.com"
}
else if (document.getElementById('check1').checked && document.getElementById('check3').checked) {
location.href='www.jsfiddle.net';
// document.getElementById('red').onclick="window.open('www.jsfiddle.net')"
}
}
Here You can find a JS Fiddle.
What I thought to do was to set the onclick property like I did with an image, using getElementById and then setting his source, so I wrote document.getElementById('red').onclick="window.open('random page')" but for some reason that I can't understand it doesn't work.
Questions:
1) As you can see in my code i wrote a location.href='address' that obviously doen't wait for the user to click the button, so that's not a solution, how can I make this work?
2)Is there a way to make this piece of code more scalable? What I mean is, in the future if I want to add another radio, I would have to modify manually the code and insert another else if, I thought about something like:
var radio = document.getElementByName('radio') //not sure if this is the right getElement
for (var i=1; i<radio.lenght; i++){
if radio[i].checked{ //is this right?
for (var n=i+1; n<radio.lenght; n++){
if radio[n].checked{
document.getElementById('red').onclick="window.open('random page')"
}
}
}
Any suggestion to my code is welcome.
Try out this in JS Fiddle. It contains how you can listen the onclick event of a button and to get the checked value of a radio button.
HTML part:
<form action="">
<input type="radio" name="vehicle" value="Yes" id='yes'>Yes<br>
<input type="radio" name="vehicle" value="No" id='no'>No
</form>
<input id="red" type="button" value="let's go"/>
JS part:
document.getElementById('red').onclick = function() {
if (document.getElementById('yes').checked) {
alert('I have a Vehicle.');
} else if(document.getElementById('no').checked) {
alert('I don\'t have a Vehicle.');
} else {
alert('No answer.');
}
}
If you use radio buttons, and you want only one to be selectable to the user at a time you have to set the same name attribute to them.
You can also make use of the value property of radio buttons for storing the redirection URL.
Here is a more useful example for you.
HTML part:
<form action="">
<input type="radio" name='redirect' value='https://www.google.com/' id='google'>Google<br />
<input type="radio" name='redirect' value='http://www.jsfiddle.net/' id='jsFiddle'>JS Fiddle<br />
<input type="radio" name='redirect' value='https://www.facebook.com/' id='Facebook'>Facebook
</form>
<input id="red" type="button" value="let's go"/>
JS part:
document.getElementById('red').onclick = function() {
var options = document.getElementsByName('redirect'),
length = options.length,
i = 0;
for (i; i < length; i++) {
if (options[i].checked) {
window.open(options[i].value);
}
}
}
if (document.getElementById('check1').checked&&document.getElementById('check2').checked)
{
document.getElementById('red').onclick=function(){
window.location.href ='http://www.google.com';
};
}
This code binds the function to the onclick event of element with id='red'. So add a bunch of such conditions and change the onclick binding whenever any radio button is checked/unchecked.