Comments on: Check all checkboxes (javascript)

By: sreeram

sreeram — Thu, 15 Dec 2011 08:26:43 +0000

Thanks for a such a valuable information……..

By: Mr Me

Mr Me — Mon, 10 Oct 2011 07:56:00 +0000

You can find some scripts here: http://www.iknowkungfoo.com/blog/index.cfm/2008/7/9/Check-All-Checkboxes-with-JQuery

By: Mr Me

Mr Me — Mon, 10 Oct 2011 07:53:23 +0000

The script I wrote is very old. You can simply do this using jQuery now, with a single line code

By: atul

atul — Mon, 10 Oct 2011 05:29:50 +0000

hi how can we select check box when they are dynamically craeted in nested foreach loops……………..

By: Mahdi Javaheripur

Mahdi Javaheripur — Wed, 10 Nov 2010 07:37:02 +0000

Hi,

This can be hugely optimized for forms with a lot of checkboxes if you get inputs.length before the loop so the input.length won’t be calculated in every iteration of the loop.

var inputsLength = inputs.length;
for (var i = 0; i < inputsLength; i++)

By: Daxa

Daxa — Thu, 15 Jul 2010 06:21:00 +0000

Its good.

By: Michael Markie

Michael Markie — Wed, 18 Nov 2009 11:31:23 +0000

This code can be cut down slightly by doing the following:

function checkAll(){
var t = document.getElementsByTagName(‘input’);
for(var i in t)
if(t[i].type==’checkbox’)
t[i].checked=true;
}

By: Khalid

Khalid — Mon, 06 Jul 2009 12:15:56 +0000

THIS is the script I’ve been searching for. Many Thanks!

By: Ranjini

Ranjini — Thu, 14 May 2009 12:15:12 +0000

I have a requirement where I need to pass the fields which have checkboxes to another page. Like if i have checkboxes on item field, i have to pass all those items(which are selected onclick of selectall button) to another page.

By: Ranjan

Ranjan — Fri, 23 Jan 2009 05:12:39 +0000

Hi Sajan ,

Here’s modified code.
The logic is just check whether check box SelectAll is checked or not, if checked then select all else un select all.

Check for the name before you select it.
here I have checked for name “chk” and type checkbox.

function checkAll() {
var selectAll = document.getElementById(‘SelectAll’);

var inputs = document.getElementsByTagName(‘input’);
for (var i = 0; i < inputs.length; i++)
{
if (inputs[i].type == ‘checkbox’ && inputs[i].name == “chk”) {
if(selectAll.checked==true)
inputs[i].checked = true;
else
inputs[i].checked = false;
}
}
}