How To Get The Sum Of Selected Checkboxes

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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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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JS Alert If No Checkboxes Selected

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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Get The Length Of Selected Checkboxes?

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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JQuery :: Looping Through All The Selected Checkboxes?

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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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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Limit Number Of Checkboxes Selected?

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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JQuery :: Pass All Selected Checkboxes In One Post Method?

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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Enable / Disable Checkboxes On Page When Radio Button Is Selected

Mar 18, 2011

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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Get The Total Of The Checkboxes Selected When The User Clicks The "calculate Total" Button?

Jul 18, 2011

I am trying to get the total of the checkboxes selected when the user clicks the "calculate total" button. It isn't working though.

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

[code]....

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Select Any 10 Checkboxes Out Of 20 Checkboxes?

Aug 2, 2009

I have the HTML all laid out for what I'm trying to do. I want to have the user be able to select any 10 checkboxes, and keep a tally of how many are selected, and how many are left to go. Should I do this with jQuery?

Code HTML4Strict:
Select any 10 cds for $20<br />
You have chosen $selected CD's<br />
You have $remaining CD's left</p>

[Code].....

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Change Selected On Dropdown When A Text Form Is Selected Or Input Is Added?

May 19, 2010

like for example i have text areas named upload1 and upload2when I click or add input on upload1 a drop down list below upload2 will not change, but when I add input on upload2 the dropdown will select "parts"

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Disable A List Box If A Previous One Is Not Selected And Enable If Selected?

Aug 6, 2009

I have various list boxes in a web form. I need list box No. 4 to be disabled until a selection is made in a previous list box, the No. 2 listbox. If some selection is done in listbox No. 2 then I can do a selection of list box No. 4. How can I do this?

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Keeping Selected Link Selected After Lost Focus

Apr 12, 2005

This is irritating cause i read a arcticle with a solution to this in one of the many newsletters i receive, but then i didn't need it and now i do i can't find it, and i'm searching for days now .

I have say 3 links

link1 --- link2 --- link3

all of then formatted nicelly with CSS. When i select one of then, say link1, it becames with a diferent background color.

What i want is to keep tha backg color even when the user clicks anywhere on the page (thus loosing focus) and until another link is clicked.

I tought this could be possible in a CSS only way, but now i think i have to use some Javascript.

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JQuery :: Getting Selected Radio Or None Selected?

Apr 25, 2010

I'm using jQuery to check if a group of radio buttons has one of them selected. This works fine if there IS one selected, but errors if NONE are selected. Can anyone show me how to make it work if NONE are selected?[code]

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JQuery :: Tab Nested Tab How To Keep Outer Selected Tab "selected"?

Oct 24, 2010

I have nested tabs structured like this:
<div id="tabs">
<li><a title="outerTab1" href="#outerTab1"></li>

[code]....

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JQuery :: Using GET Data To Decide Where To Put Selected="selected"?

Nov 28, 2011

I need some jQuery code to get the data from the URL (example.com/?areaCode=1234) and then use it to add selected="selected" to the correct option from this set.

<option value="1111">one one one one</option>
<option value="2222">two two two two</option>
<option value="3333">three three three three</option>
<option value="1234">one two three four</option>

I hope you understand, it's quite hard to explain even though its super simple.
I can do this in PHP by doing<option value="1234" <?php if($_GET['areaCode'] == 1234) { echo 'selected="selected"; }>one two three four</option>

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Getting Rid Of Checkboxes

Sep 7, 2005

I currently have a table with a number of cells. In certain cells I have checkboxes that users select to submit the checkboxes values. What I want to do is get rid of the checkboxes and just have the user click on the cell to select a value. I have worked out the way to change the background color of the cell to show what has been selected but is it possible to do what I want with Javascript.

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Getting The Collection Of Checkboxes

Jan 31, 2006

I have a form wherein there are around 200-300 rows of homogenous
data, each having around 30 input fileds of its own.So totally, there
are more than 6000 input fields . Now, when the user submits this page,
i need to loop through the checkboxes and identify the ones that are
checked. I can't use the getElementsByName() since the checkbox names
are different. I'm using getElementsByTagName("input"). Because of the
huge amount of data, this method takes around 4-5 secs to evaluate
before submitting the form. Is there some way to get the collection of
checkboxes without having to loop through all the input fields?

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Get The Values Of The Checkboxes?

Jul 19, 2007

I have a form where I have embedded a table. Inside a column in each row is a checkbox. I want:

A) to get the values of the checkboxes

B) to count the total amount of checkboxes (which are selected)

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Loop Through Checkboxes

Jul 20, 2005

Browser: IE5+

I have a form with an unknown number of checkboxes (the page is generated
by a server-side script). I need to loop through those checkboxes, test
whether the name of each checkbox starts with a known string and, if it
does, clear that checkbox.

I've tried just about everything that I can think of, but to no avail.

Can someone tell me how to loop through the checkboxes of a form?

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Select 5 Checkboxes Out Of 60?

Sep 13, 2009

I have a list of 60 check boxes from a mysql database and i only want to be able to select 5 out all of them and the rest to be disabled here is my code so far [code]...

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Unchecking Checkboxes With Php As Well?

Nov 24, 2009

I found a nice script that will check all check boxes on a page but the id's of the boxes are generated with a php foreach loop and I'm kind of stuck.Here's the javascript:

PHP Code:
function checkAll(field)


[code]....

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Checkboxes Are Controlling One Another

Sep 22, 2009

I have a few checkboxes in a form. Some of them work independently, but some make the others go on and off. Specifically the lower ones are controlling the upper ones.

<td>
<input type="checkbox" name="weddingitem1" value="Toppers" id="Toppers"/><label for="Toppers" >Toppers<br />
<input type="checkbox" name="weddingitem2" value="Champers" id="Champers"/><label for="Champers" >Champers<br />
</td>

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Disable All Checkboxes Except 1st One?

Jan 15, 2010

I have a form with a number of checkboxes. The 1st one is "Select All". When this checkbox is ticked I would like to disable all others. When the "Select All" checkbox is unticked, all checkboxes should be enabled.

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Cycling Through Checkboxes ?

Aug 31, 2011

I'm currently working on a page working with separate categories and a whole lotta check boxes. My objective is to have one checkbox deselect the other checkboxes in its category without interfering with the rest. How would I go about doing this assuming the id tag is already in use and differs per tag? I was thinking about cycling through all checkbox tags and sorting them out via class but I'm looking for something possibly more efficient.

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