Count How Many Checkboxes Were Selected

Nov 5, 2009

I am trying to figure out the best way to count how many checkboxes were selected. Suppose I have the following HTML:

Code:

<form name="myform" id="myformid">
<input type="checkbox" name="items[]" id="item0" value="One" />
<input type="checkbox" name="items[]" id="item1" value="Two" />
<input type="checkbox" name="items[]" id="item2" value="Three" />

[Code]....

But I don't think I can do it that way since I'm dumping it all into an array for processing.

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Count The Number Of Checkboxes That Have Been Selected?

Jan 28, 2009

how do you count the number of checkboxes that have been selected say I want more than 1 and less than 3 to be selected out of 5?

<script type="text/javascript">
if (document.formName.numberOfBlanks.checked >= 1 && document.formName.numberOfBlanks.checked <= 3)
alert("test")

[code]...

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Count The Checked Checkboxes?

Sep 23, 2009

Basically, I'm counting all the checked checkboxes and assign the count value to a hidden field in the form. <script language="JavaScript" type="text/javascript">

function KeepCount()
{
var count = 0
var max = document.getElementsByTagName('checkbox').length;
FOR( var x=0; x<max; x++)
{

[Code]...

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Disable Checkboxes Once The Count Is 5?

Feb 25, 2011

I have a foreach loop that displays survey testimonials. The user is allowed to pick only 5 testimonials. Is there an easy way to disable the rest of the checkboxes once the selected item is 5? I was trying this in jquery but this is not doing anything.

<script type="text/javascript">
$(document).ready(function () {
var checkedcount = 0;
$('.chkItems').click(function () {

[Code]....

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Count How Many Checkboxes Are Checked?

Jan 12, 2001

How could I count how many checkboxes are checked? There are around 100 checkboxes and I don't want the user to check more than 10.

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JQuery :: Count Checkboxes Same Value?

Nov 12, 2010

I am stuck on something that is probably a straight forward issue. Just can't get my head around it.Basically I have a whole bunch of checkboxes and I want to count the number that have the same class (only when selected)Example:

<input type="checkbox" name="Paris" value="FR" />
<input type="checkbox" name="Marseille" value="FR" />
<input type="checkbox" name="Cardiff" value="UK" />

[code].....

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Count Checked Checkboxes In Form

Aug 25, 2010

<script language="javascript">
function checkall(){
var chkd=document.getElementById('ckbox').value;
num=form1.numberOfBlanks.length;
var i=0;
while(i<chkd.checked==true.length) {
alert("hellow");
i++=;
}}
</script>
This does not work.

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Count Checked Checkboxes With A Twist

Feb 5, 2006

I have two "series" of check boxes in a form. One named:

<input type="checbox" name="check_100[]" value="1" />
<input type="checbox" name="check_100[]" value="2" />
...and so on

and one named

<input type="checbox" name="check_101[]" value="1" />
<input type="checbox" name="check_101[]" value="2" />
...and so on.

I need to ensure that no more than 4 checkboxes from the first (100) series are checked simultaneously. I've managed to find some scripts that come close, but they all count all the checkboxes in the form instead of the specific ones that I'm interested in.

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Apr 20, 2011

I have a dynamic html. i'm trying to count the number of checkboxes checked.

For some reason this isn't working.

Code:

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Mar 6, 2006

I have a form. It has several products. Each product has a price listed. Each product can be selected via a checkbox.

What I would like to do is have the sum of each selected product, added in total at the bottom of the form.

I would prefer to use javascript/dhtml for this, I don't want anything complex, just something to add to the page and have it display the total live as the customer checks/unchecks a product.

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Jun 1, 2011

I'm struggling to make a js alert when none of the 3 checkboxes on my form are selected.

function checkform ( form )
{
if (form.contact_name.value == "contact name") {
alert( "Please enter a contact name" );

[Code].....

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Apr 2, 2010

I want to add the + but stop when i reaches the checked length minus 1.

Code javascript:
var checkedlength=0;
for(i=0;i<document.getElementsByName('checkresult').length;++i){
if (document.getElementsByName('checkresult')[i].checked){

[Code]....

I realize that document.getElementsByName('checkresult').length in if(i<document.getElementsByName('checkresult').length-1) is not the same as the checked.

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Jul 5, 2009

This is what i have. It does not correctly add two values when two checkboxes are checked. It should add up to 160 but it adds up to 20 instead! any ideas?

[Code]...

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Feb 25, 2010

I have a form with checkboxes. I have the results being stored as an array, that gets sent to a mysql database.

how can i limit the number of checkboxes selected? I am looking for a max of 15 selections.

i've been able to set the max when the checkboxes are not stored as an array, but for simplicity storing as an array is the way i need to go.

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Jan 1, 2012

I have used the following in retrieving selected checkboxes:

Now, I would like to post all of them (simultaneously) to a php file.

$.post('form.php', { /* How can I pass all selected checkboxes in one post method? */ });

I tried using arrays but unfortunately failed.

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I have written the following script which enables/disables checkboxes on my page when a radio button is selected.[code] What I would like to do is create another function called checkval() like below, which will check the value of my radio button (id: email_alerts). If the value is equal to "on" then it will run enableCheckboxes().

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<html>
<head>
<script type="text/javascript">

[code]....

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Code HTML4Strict:
Select any 10 cds for $20<br />
You have chosen $selected CD's<br />
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[Code].....

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