Reputation: 10117

jquery select all checkboxes

I have a series of checkboxes that are loaded 100 at a time via ajax.

I need this jquery to allow me to have a button when pushed check all on screen. If more are loaded, and the button is pressed, to perhaps toggle all off, then pressed again toggle all back on.

This is what i have, obviously its not working for me.

$(function () {
 $('#selectall').click(function () {
  $('#friendslist').find(':checkbox').attr('checked', this.checked);
 });
});

The button is #selectall, the check boxes are class .tf, and they all reside in a parent div called #check, inside a div called #friend, inside a div called #friendslist

Example:

<div id='friendslist'>
    <div id='friend'>
        <div id='check'>
            <input type='checkbox' class='tf' name='hurr' value='durr1'>
        </div>
    </div>
    <div id='friend'>
        <div id='check'>
            <input type='checkbox' class='tf' name='hurr' value='durr2'>
        </div>
    </div>
    <div id='friend'>
        <div id='check'>
            <input type='checkbox' class='tf' name='hurr' value='durr3'>
        </div>
    </div>
</div>

<input type='button' id='selectall' value="Select All">

Upvotes: 43

Answers (19)

Gareth Daine

Reputation: 4186

Here's a basic jQuery plugin I wrote that selects all checkboxes on the page, except the checkbox/element that is to be used as the toggle. This, of course, could be amended to suit your needs:

(function($) {
    // Checkbox toggle function for selecting all checkboxes on the page
    $.fn.toggleCheckboxes = function() {
        // Get all checkbox elements
        checkboxes = $(':checkbox').not(this);

        // Check if the checkboxes are checked/unchecked and if so uncheck/check them
        if(this.is(':checked')) {
            checkboxes.prop('checked', true);
        } else {
            checkboxes.prop('checked', false);
        }
    }
}(jQuery));

Then simply call the function on your checkbox or button element:

// Check all checkboxes
$('.check-all').change(function() {
    $(this).toggleCheckboxes();
});

As you are adding and removing more checkboxes via AJAX, you may want to use this instead of .change():

// Check all checkboxes
$(document).on('change', '.check-all', function() {
    $(this).toggleCheckboxes();
});

Upvotes: 0

Anthony Grist

Reputation: 38345

The currently accepted answer won't work for jQuery 1.9+. The event handling aspect of the (rather heavily) overloaded .toggle() function was removed in that version, which means that attempting to call .toggle(function, function) will instead just toggle the display state of your element.

I'd suggest doing something like this instead:

$(function() {
    var selectAll = $('#selectall');
    selectAll.on('click', function(e) {
        var checked = !(selectAll.data('checked') || false);
        $('#friendslist .tf').prop('checked', checked);
        selectAll.data('checked', checked);
    });
});

That uses a regular click event handler, plus a data attribute to track the "toggled" status and invert it with each click.

Upvotes: 0

Onimusha

Reputation: 3385

A very simple check/uncheck all without the need of loop

<input type="checkbox" id="checkAll" /> Check / Uncheck All

<input type="checkbox" class="chk" value="option1" /> Option 1
<input type="checkbox" class="chk" value="option2" /> Option 2
<input type="checkbox" class="chk" value="option3" /> Option 3

And the javascript (jQuery) accounting for "undefined" on checkbox value

** UPDATE - using .prop() **

$("#checkAll").change(function(){
    var status = $(this).is(":checked") ? true : false;
    $(".chk").prop("checked",status);
});

** Previous Suggestion - may not work **

$("#checkAll").change(function(){
    var status = $(this).attr("checked") ? "checked" : false;
    $(".chk").attr("checked",status);
});

OR with the suggestion from the next post using .prop() combined into a single line

$("#checkAll").change(function(){
    $(".chk").attr("checked",$(this).prop("checked"));
});

Upvotes: 8

Uhoa

Reputation: 1

This may work for both (checked/unchecked) selectall situations:

$(document).ready(function(){
 $('#selectall').click(function () {
   $("#friendslist .tf").attr("checked",function(){return $(this).attr("checked") ? false : true;});
 });
});

Upvotes: 0

Adrian Florescu

Reputation: 4492

I created a function that I use on all projects. This is just the initial draft, but maybe it will help:

Function:

function selectAll(wrapperAll, wrapperInputs) {

    var selectAll = wrapperAll.find('input');
    var allInputs = wrapperInputs.find('input');

    console.log('Checked inputs = ' + allInputs.filter(':not(:checked)').length);

    function checkitems(allInputs) {
        //If all items checked
        if (allInputs.filter(':not(:checked)').length === 0) {
            console.log('Function: checkItems: All items checked');
            selectAll.attr('checked', true);

        } else {
            console.log('Function: checkItems: Else all items checked');
            selectAll.attr('checked', false);
        }
    }

    checkitems(allInputs);
    allInputs.on('change', function () {
        checkitems(allInputs)
    });

    selectAll.on('change', function () {
        if (this.checked) {
            console.log('This checkbox is checked');
            wrapperInputs.find(':checkbox').attr('checked', true);

        } else {
            console.log('This checkbox is NOT checked');
            wrapperInputs.find(':checkbox').attr('checked', false);

        }
    });

}

It accepts the 2 parameters where the inputs are wrapped into and you cand use-it like this:

$(function () {

    var wrapperAll = $('.selectallinput');
    var wrapperInputs = $('.inputs');

    selectAll(wrapperAll, wrapperInputs);
});

See demo: http://jsfiddle.net/cHD9z/

Upvotes: 1

Charlie Benger-Stevenson

Reputation: 412

I could not get this last example to work for me. The correct way to query the state of the checkbox is apparently :

var status = $(this).prop("checked");

and not

var status = $(this).attr("checked") ? "checked" : false;

as above.

See jQuery receiving checkbox status

Upvotes: 2

user1953637

Reputation: 21

<div class="control-group">
<input type="checkbox" class="selAllChksInGroup"> All
<input type="checkbox" value="NE"> Nebraska
<input type="checkbox" value="FL"> Florida
</div>


$(document).ready(function(){

$("input[type=checkbox].selAllChksInGroup").on("click.chkAll", function( event ){
    $(this).parents('.control-group:eq(0)').find(':checkbox').prop('checked', this.checked);
});

});

Upvotes: 2

user1953637

Reputation: 21

<input type="checkbox" onclick="toggleChecked(this.checked)"> Select / Deselect All

Now here are  two versions of the toggleChecked function dependent on the semantics of your document. The only real difference is the jQuery selector for your list checkboxes:

1: All checkboxes have a class of  “checkbox” (<input type=”checkbox” class=”checkbox” />)
function toggleChecked(status) {
$(".checkbox").each( function() {
$(this).attr("checked",status);
})
}

2: All the checkboxes are contained within a div with an arbitary id:

<div id="checkboxes">
<input type="checkbox" />
<input type="checkbox" />
<input type="checkbox" />
</div>

In this case the function would look like this:

function toggleChecked(status) {
$("#checkboxes input").each( function() {
$(this).attr("checked",status);
})

Have fun!

Upvotes: 0

TeacupTech

Reputation: 81

This is how I toggle checkboxes

$(document).ready(function() {
    $('#Togglebutton').click(function() {
        $('.checkBoxes').each(function() {
            $(this).attr('checked',!$(this).attr('checked'));
        });
    });
});

Upvotes: 8

Deep Kumar

Reputation: 125

Here is how I achieved it.

function SelectAllCheckBoxes();
{
$('#divSrchResults').find(':checkbox').attr('checked', $('#chkPrint').is(":checked"));
}

The following fires the above line.

<input type=checkbox id=chkPrint onclick='SelectAllCheckBoxes();' />

On the click of chkPrint , every checkbox in the grid divSrchResults' is either checked or unchecked depending on the status of chkPrint.

Of course, if you need advanced functions like unchecking the titled checkbox when every other checkbox has been unchecked, you need to write another function for this.

Upvotes: 1

Teg

Reputation: 793

I know I'm revisiting an old thread, but this page shows up as one of the top results in Google when this question is asked. I am revisiting this because in jQuery 1.6 and above, prop() should be used for "checked" status instead of attr() with true or false being passed. More info here.

For example, Henrick's code should now be:

$(function () {
    $('#selectall').toggle(
        function() {
            $('#friendslist .tf').prop('checked', true);
        },
        function() {
            $('#friendslist .tf').prop('checked', false);
        }
    );
});

Upvotes: 63

Selvaraj Muthiah

Reputation: 25

try this

var checkAll = function(){  
var check_all = arguments[0];
var child_class = arguments[1];
if(arguments.length>2){
    var uncheck_all = arguments[2];

    $('#'+check_all).click(function (){
        $('.'+child_class).attr('checked', true);
    });

    $('#'+uncheck_all).click(function (){
        $('.'+child_class).attr('checked', false);
    });

    $('.'+child_class).click(function (){
        var checkall_checked = true;
        $('.'+child_class).each(function(){
            if($(this).attr('checked')!=true){
                checkall_checked = false;
            }
        });
        if(checkall_checked == true){
            $('#'+check_all).attr('checked', true);
            $('#'+uncheck_all).attr('checked', false);
        }else{
            $('#'+check_all).attr('checked', false);
            $('#'+uncheck_all).attr('checked', true);
        }
    });
}else{
    $('#'+check_all).click(function (){
        $('.'+child_class).attr('checked', $(this).attr('checked'));
    });

    $('.'+child_class).click(function (){
        var checkall_checked = true;
        $('.'+child_class).each(function(){
            if($(this).attr('checked')!=true){
                checkall_checked = false;                   
            }
        });
        $('#'+check_all).attr('checked', checkall_checked);
    });
}
};

To "check all" and "uncheck all" is same checkbox

checkAll("checkall_id", "child_checkboxes_class_name");

To "check all" and "uncheck all" is separate checkbox

checkAll("checkall_id", "child_checkboxes_class_name", "uncheckall_id");

Upvotes: 1

Scott Evernden

Reputation: 39926

assuming #selectall is a checkbox itself whose state you want copied to all the other checkboxes?

$(function () {
 $('#selectall').click(function () {
  $('#friendslist input:checkbox').attr('checked', $(this).attr('checked'));
 });
});

Upvotes: 1

Sarbagna

Reputation: 11

You may try this:

$(function () {
 $('#selectall').click(function () {
  $('#friendslist input:checkbox').attr('checked', checked_status);
 });
});

//checked_status=true/false -as the case may be, or set it via a variable

Upvotes: 1

rosscj2533

Reputation: 9323

It works for me (IE, Safari, Firefox) by just changing your this.checked to 'checked'.

$(function() {
  $('#selectall').click(function() {
    $('#friendslist').find(':checkbox').attr('checked', 'checked');
  });
 });

Upvotes: 1

Henrik Joreteg

Reputation: 1736

Use the jquery toggle function. Then you can also perform whatever other changes you may want to do along with those changes... such as changing the value of the button to say "check all" or "uncheck all".

$(function () {
    $('#selectall').toggle(
        function() {
            $('#friendslist .tf').attr('checked', 'checked');
        },
        function() {
            $('#friendslist .tf').attr('checked', '');
        }
    );
});

Upvotes: 13

machineghost

Reputation: 35790

So "checked" is a crappy attribute; in many browsers it doesn't work as expected :-( Try doing:

$('#friendslist').find(':checkbox')
    .attr('checked', this.checked)
    .attr('defaultChecked', this.checked);

I know setting "defaultChecked" doesn't make any sense, but try it and see if it helps.

Upvotes: 0

Robert Cabri

Reputation: 3981

maybe try this:

$(function () {
    $('#selectall').click(function () {
        $('#friendslist .tf').attr('checked', this.checked);
    });
});

Upvotes: 5

user57508

Reputation:

$('#friendslist .tf')

this selector will suit your needs

Upvotes: 12

jquery select all checkboxes

Answers (19)

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