i have an issue.
I'm trying avoid the user leaves the page if theres any element checked.
For instance, i have several checkboxes with a class named "testCheckbox" and i tried that:
window.onbeforeunload = function(){
if($('.testCheckbox').attr('checked'))
return 'yes';
else
return 'no';}}
But it always is says 'yes' when the first checkbox (in order of appear) is checked, if i check the second or the third, etc, says 'no'.
You can use checked-selector along with with is
if ($('.testCheckbox').is(':checked'))
if ($('.testCheckbox:checked').length)
your probably wanting to do something like this
window.onbeforeunload = function()
{
var yesno = 'no';
$('.testCheckbox').each(function(index,value){
if($(value).attr('checked'))
{
yesno = 'yes';
return false;
}
});
return yesno;
}
Related
I'm trying to do that only one can happen, if you click yes or no. As it is now if you click "no" in the first time and "yes" in the second time, it will execute it twice .
function confirm() {
$("#no").one("click", function(){
return false;
});
}
$("#yes").one("click", function () {
//do something
});
thanks for help
Both events are attached at document.ready I assume, which means they will remain active indefinitely unless you specify otherwise.
The following approach is fairly basic, just set a variable 'hasClicked' to false. And as soon as either one of them is clicked, set 'hasClicked' to true. Each button has an if-structure that only executes the code IF 'hasClicked' is false.
Try the following:
var hasClicked = false;
function confirm(){
$("#no").one("click", function(){
if (!hasClicked){
hasClicked = true;
return false;
}
});
$("#yes").one("click", function () {
if (!hasClicked) {
hasClicked = true;
//do something
}
});
}
As you can't unbind an event binded with one() check this answer
So you'll have to work around like this:
function confirm() {
$("#no").bind("click", function(){
$(this).unbind(); // prevent other click events
$("#yes").unbind("click"); // prevent yes click event
// Do your stuff
});
}
$("#yes").bind("click", function () {
$(this).unbind();
$("#no").unbind("click");
// Do your stuff
});
Assign your buttons a class called confirmation. Set a event handler based on class. Read the value of the button to decide what you want to do.
$(".confirmation").one("click", function(){
if($(this).val() === 'yes'){
//do something
}else{
return false;
}
}
I'm trying to assign a function to a couple of checkboxes, but I only want them added based on a condition, in this case the step number of the form. This is a roundabout way of making the checkboxes readOnly AFTER they have been selected (or not). So, at step 1 I want the user to choose cb1 or cb2, but at step 2 I want to assign the function that will not let the checkboxes values be changed.
What am I doing wrong?
function functionOne() {
this.checked = !this.checked
};
if (document.getElementById("stepNumber").value == 2) {
document.getElementById("cb1").setAttribute("onkeydown", "functionOne(this)");
document.getElementById("cb2").setAttribute("onkeydown", "functionOne(this)");
}
You are passing the element in an argument, so use that:
function functionOne(elem) {
elem.checked = !elem.checked
};
You could also use properties:
document.getElementById("cb1").onkeydown = functionOne;
document.getElementById("cb2").onkeydown = functionOne;
function functionOne() {
this.checked = !this.checked
};
This is a solution that requires jquery but you can use the .click function to disable checkboxes once one is clicked.
Here is a working example:
http://jsfiddle.net/uPsm7/
Why not on the selection disable the checkbox?
Function onCheck(elm)
{
document.getElementById("cbValue").value = elm.value;
elm.disabled = true;
}
<input id="cbValue" type="hidden" />
Use the hidden input field to allow form to send data back to server.
Here an example of my checkbox list http://jsfiddle.net/YnM2f/
Let's say I check on G then A,B,C,D,E,F also automatic checked. How can i achieve my goals with jQuery?
First you need to get all the checkboxes based on which one is clicked. for this you need to get the parent nodes, siblings that are before it. Here is some code that will help you get there, but you'll need to work on it to make it work for you.
http://jsfiddle.net/urau8/
$("input:checkbox").on("click",function(){
if(this.checked)
$(this).parent().prevAll().each(function(){
$("input:checkbox",this).attr("checked",true);
});
});
This will check all checkboxes above a checkboxe that gets checked and uncheck all checkboxes above a checkbox that gets unchecked, given the checkbox layout that you've provided.
$('input:checkbox').click(function () {
var state = $(this).prop('checked');
var elements;
if (state) {
elements = $(this).parent().prevAll();
} else {
elements = $(this).parent().nextAll();
}
elements.each(function () {
$('input:checkbox', this).prop('checked',state);
});
});
$('input:checkbox').change(function(){
var $allParents = $(this).parent();
$allParents.prevAll().find('input').attr('checked', 'checked');
$allParents.nextAll().find('input').removeAttr('checked');
});
Try this
Well it's already been done five times, but this is what I did: http://jsfiddle.net/YnM2f/27/
$('input').click(function(){
if( $(this).is(':checked') ){
$(this).parent('p').prevAll().children('input').attr('checked',true)
}
})
Try something like this: http://jsfiddle.net/YnM2f/16/
It's a very specific solution (as in it will only work with "G"), but it should give you an idea for how to customize this code to meet your needs.
$('input:checkbox').filter(function(){
return (/ G/).test($(this).parent().text())
}).on('change', function() {
var gBox = $(this);
$('input:checkbox').prop('checked', $(gBox).prop('checked'));
});
I am using jQuery load() function to load some pages into container. Here is the code:
$('div.next a').live('click',function() {
$('.content').load('page/3/ #info','',function(){
//do something
});
return false;
});
Everything works just fine but the problem is when I quickly double click the div.next link, from console I see that it loads the page twice because I did a quick double click. I could even make it 3 clicks and it will load it 3 times and show in console smth like that:
GET http://site/page/3/ 200 OK 270ms
GET http://site/page/3/ 200 OK 260ms
My question is how to prevent such double clicking and not to let load the target page more then once no matter how many times it was clicked.
Thank you.
Whatever happened to good ol' JavaScript? Why are you all trying to figure it out with pure jQuery?
var hasBeenClicked = false;
$('div.next a').live('click',function() {
if(!hasBeenClicked){
hasBeenClicked = true;
$('.content').load('page/3/ #info','',function(){
//do something
//If you want it clickable AFTER it loads just uncomment the next line
//hasBeenClicked = false;
});
}
return false;
});
As a side note, never never never use .live(). Use .delegate instead like:
var hasBeenClicked = false;
$('div.next').delegate('a','click',function() {
if(!hasBeenClicked){
hasBeenClicked = true;
$('.content').load('page/3/ #info','',function(){
//do something
//If you want it clickable AFTER it loads just uncomment the next line
//hasBeenClicked = false;
});
}
return false;
});
Why? Paul Irish explains: http://paulirish.com/2010/on-jquery-live/
To answer your comment...
This could happen if you have your delegate function nested inside your AJAX call (.load(), .get(), etc). The div.next has to be on the page for this to work. If div.next isn't on the page, and this isn't nested, just do this:
$('#wrapper').delegate('div.next a','click',function() {
http://api.jquery.com/delegate/
Delegate needs the selector to be the parent of the dynamically added element. Then, the first parameter of delegate (div.next a in the last example) is the element to look for within the selected element (#wrapper). The wrapper could also be body if it's not wrapped in any element.
You could try using the jquery one method:
$("a.button").one("click", function() {
$('.content').load('page/3/ #info','',function(){
//do something
});
});
You could unbind the click event with die():
$(this).die('click').click(function() { return False; });
Or you could give the element a .clicked class once it is clicked:
$(this).addClass('clicked');
And check if that class exists when performing your logic:
$('div.next a').live('click',function() {
if (!$(this).is('.clicked')) {
$(this).addClass('clicked');
$('.content').load('page/3/ #info','',function(){
//do something
});
}
return false;
});
Store whether you're waiting for the load in a variable.
(function() {
var waitingToLoad = false;
$('div.next a').live('click',function() {
if (!waitingToLoad) {
waitingToLoad = true;
$('.content').load('page/3/ #info','',function(){
waitingToLoad = false;
//do something
});
}
return false;
});
})()
I have this:
$('input.people').attr('checked', function() {
return $.inArray(this.name, ['danB', 'lindaC']) != -1;
});
It is for a list of contacts. I want to be able to have the user click a checkbox that will select the people in a specific role and uncheck everyone else. That works. Now I want to modify this so that if someone unclicks the same checkbox that it deselects those people (and only those people). Would that be an onBlur event?
I'm thinking something like this:
$('input.people').attr('checked', function(){
return $.inArray(this.name, ['danB', 'lindaC']) != 1;
});
or would it be:
$('input.people').attr('checked', function(){
return $.inArray(this.name, ['danB', 'lindaC']) = -1;
});
And how would I integrate this with the top function? A shout out, btw, to Nick Craver for his help to date.
$('input.people').change(function ()
{
if(!$(this).hasClass("checked"))
{
//do stuff if the checkbox is checked
$(this).addClass("checked");
return;
}
//do stuff if the checkbox isn't checked
$(this).removeClass('checked');
});