Develop Reference

Getting HTML5 custom data-* attributes from radio buttons on form submit

Is there a way to get the custom HTML5 data-* attributes for the selected radio button when you submit a form? The value does not seem to get picked up by serializeArray().
HTML
<form id="preference-form">
<table>
<tr class ="result">
<td width="100%">{{Title}}</td>
<td><input type="radio" id="radio-{{Project_No}}-1" data-application="{{Application_ID}}" name="{{Project_ID}}" value="1"></td>
<td><input type="radio" id="radio-{{Project_No}}-2" data-application="{{Application_ID}}" name="{{Project_ID}}" value="2"></td>
<td><input type="radio" id="radio-{{Project_No}}-3" data-application="{{Application_ID}}" name="{{Project_ID}}" value="3"></td>
<td><input type="radio" id="radio-{{Project_No}}-9" data-application="{{Application_ID}}" name="{{Project_ID}}" value="9"></td>
</tr>
</table>
</form>
JavaScript
$("#preference-form).on('submit', function() {
var data = $(this).serializeArray();
console.log(data)
});
This outputs the name and value fields, but I can't seem to find a simple answer about the data-* fields. Unfortunately, I need all three pieces of information in order to perform an update on the database record, and from what I understand:
Each ID and Value field has to be unique,
Each name field has to be identical to group the elements.
I think the tricky part for this is the multiple elements compared to a single element.

Based on comment that all you have is radios; writing your own serializer is simple.
First I would put the data attribute on the <tr> for less repetition
<tr data-application="{{Application_ID}}">
Then you would do something like:
var data = $(this).find('tr:has(:radio:checked)').map(function(){
var $row=$(this), radio = $row.find(':radio:checked')[0]
return {
app: $row.data('application'),
name: radio.name,
value: radio.value
}
}).get()

You are missing #
$('#preference-form').on('submit', function(e) {
Use a hidden input for the data-* attribute values. The following demo sends to a live test server and the response will be displayed in the iframe below.
$('#preference-form').on('submit', function(e) {
radData(e);
var data = $(this).serializeArray();
console.log(data);
});
var radData = e => {
$(':radio:checked').each(function(e) {
var dataSet = $(this).data('application');
$(this).closest('tr').find('.dataSet').val(dataSet);
});
}
.as-console-wrapper {
width: 350px;
min-height: 100%;
margin-left: 45%;
}
.as-console-row.as-console-row::after {
content: '';
padding: 0;
margin: 0;
border: 0;
width: 0;
}
.hide {
display: none
}
<form id="preference-form" action='https://httpbin.org/post' method='post' target='response'>
<table width='100%'>
<tr class="result">
<td><input type="radio" id="rad1" data-application="rad1" name="rad1" value="1"></td>
<td><input type="radio" id="rad2" data-application="rad2" name="rad1" value="2"></td>
<td><input type="radio" id="rad3" data-application="rad3" name="rad1" value="3"></td>
<td><input type="radio" id="rad9" data-application="rad9" name="rad1" value="9">
</td>
<td class='hide'>
<input class='dataSet' name='dataSet1' type='hidden'>
</td>
</tr>
<tr class="result">
<td><input type="radio" id="rad4" data-application="rad4" name="rad2" value="4"></td>
<td><input type="radio" id="rad5" data-application="rad5" name="rad2" value="5"></td>
<td><input type="radio" id="rad6" data-application="rad6" name="rad2" value="6"></td>
<td><input type="radio" id="radA" data-application="radA" name="rad2" value="A">
</td>
<td class='hide'>
<input class='dataSet' name='dataSet2' type='hidden'>
</td>
</tr>
<tr class="result">
<td><input type="radio" id="rad7" data-application="rad7" name="rad3" value="7"></td>
<td><input type="radio" id="rad8" data-application="rad8" name="rad3" value="8"></td>
<td><input type="radio" id="radB" data-application="radB" name="rad3" value="B"></td>
<td><input type="radio" id="radC" data-application="radC" name="rad3" value="C">
</td>
<td class='hide'>
<input class='dataSet' name='dataSet3' type='hidden'>
</td>
</tr>
</table>
<input type='submit'>
</form>
<iframe name='response'></iframe>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

Radio button to check all boxes

<table class="table borderless">
<thead>
<tr>
<th>Rank</th>
<th>+/-</th>
<th>Searches</th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td><input type="radio" name="optradio" class="custom"> ALL</td>
<td><input type="radio" name="optradio" class="custom"> ALL</td>
<td><input type="radio" name="optradio" class="custom"> ALL</td>
<td><input id="ex2" type="text" class="span2" value="" data-slider-min="10" data-slider-max="1000" data-slider-step="1" data-slider-value="[0,1000]" data-slider-id="RC" id="R"/></td>
</tr>
<tr>
<td><input type="checkbox" class="custom-selector"> Rank 1-10</td>
<td><input type="checkbox" > Up</td>
<td><input type="checkbox" > Over</td>
</tr>
<tr>
<td><input type="checkbox" class="custom-selector"> Rank 11-20</td>
<td><input type="checkbox" > Down</td>
<td><input type="checkbox" > Under</td>
</tr>
<tr>
<td><input type="checkbox" class="custom-selector"> Rank 21-100</td>
<td><input type="checkbox" > No movement</td>
</tr>
<tr>
<td><input type="checkbox" class="custom-selector"> Not in top 100</td>
</tr>
</tbody>
</table>
Script:
$(document).ready(function () {
$(".custom").change(function () {
$(".custom").parent().find(".custom-selector").prop("checked", true);
})
});
What I need is a radio button that checks all the boxes when selected.
Right now nothing happens when I click the radio button. However, if I add this radio button:
<input type="radio" id="op5" value="1" name="options2" class="custom">
Then they both work. Even the initial one checks all the boxes.
What is this strange behavior? I'm missing something
EDIT: it appears the radio button must be outside the table? Can I have it inside somehow?

try:
$(".custom").closest("tbody").find(".custom-selector").prop("checked", true);
or Just:
$(".custom-selector").prop("checked", true);

Try this:
$(".custom").change(function () {
$(this).parents('tbody').find(".custom-selector:checked");
});
and some reference: https://api.jquery.com/checked-selector
eventually remove your action selector using .not(this)

Try this :
$(document).ready(function () {
$(".custom").change(function () {
$(".custom-selector").prop("checked", true);
})
});

Get all the values of td columns from table where checkbox is checked

I have a table as below:
..
There have been multiple questions asked for getting the values but in this case I should always have a parent item name. Suppose If a user selected only one subitem in "Shirts", then I should be able to get all the values from the selected tr and with that I need parent item name also i.e "shirts" and if some one clicks on all the subitems of a parent item, then all the values of all tr are need to be in some sort of array object on click of a "Save" button. I am trying hard to do this. Any help would be really appreciated. Though I have attached the HTML but this HTML is being generated at run time.
HTML:
<table>
<tr>
<td> </td>
<td> </td>
<td>Name</td>
<td>Sub Item</td>
<td>User Input</td>
</tr>
<tr>
<td>
<input type="checkbox" id="chkGroup1" class="cls1" onclick="checkUncheckAll(this);" />
</td>
<td>Shirts
</td>
</tr>
<tr>
<td>
<input type="checkbox" class="cls1" name="Group1" onclick="CheckCorrespondingHeader(this);" /></td>
<td> </td>
<td>Item1</td>
<td>SubItem1</td>
<td>
<input id="1datepicker" name="1datepicker" type="text" /><script>
</script></td>
</tr>
<tr>
<td>
<input type="checkbox" class="cls1" name="Group1" onclick="CheckCorrespondingHeader(this);" /></td>
<td> </td>
<td>Item2</td>
<td>SubItem2</td>
<td>
<input id="2datepicker" name="2datepicker" type="text" /><script>
</script></td>
</tr>
<tr>
<td>
<input type="checkbox" class="cls1" name="Group1" onclick="CheckCorrespondingHeader(this);" /></td>
<td> </td>
<td>Item3</td>
<td>SubItem3</td>
<td>
<input id="3datepicker" name="3datepicker" type="text" /><script>
</script></td>
</tr>
<tr>
<td>
<input type="checkbox" id="chkGroup2" class="cls2" onclick="checkUncheckAll(this);" />
</td>
<td>Jeans
</td>
</tr>
<tr>
<td>
<input type="checkbox" class="cls2" name="Group2" onclick="CheckCorrespondingHeader(this);" /></td>
<td> </td>
<td>Item4</td>
<td>SubItem4</td>
<td>
<input id="4datepicker" name="4datepicker" type="text" /><script>
</script></td>
</tr>
<tr>
<td>
<input type="checkbox" class="cls2" name="Group2" onclick="CheckCorrespondingHeader(this);" /></td>
<td> </td>
<td>Item5</td>
<td>SubItem5</td>
<td>
<input id="5datepicker" name="5datepicker" type="text" /><script>
</script></td>
</tr>
<tr>
<td>
<input type="checkbox" class="cls2" name="Group2" onclick="CheckCorrespondingHeader(this);" /></td>
<td> </td>
<td>Item6</td>
<td>SubItem6</td>
<td>
<input id="6datepicker" name="6datepicker" type="text" /><script>
</script></td>
</tr>
</table>
Script code looks like below:
<script>
function checkUncheckAll(sender) {
var chkElements = document.getElementsByClassName(sender.className);
for (var i = 0; i < chkElements.length; i++) {
chkElements[i].checked = sender.checked;
}
}
function CheckCorrespondingHeader(sender) {
ControlLength = $("[name='" + sender.name + "']").length;
var countchecks = 0;
$("[name='" + sender.name + "']").each(function () {
if ($(this).prop('checked') == true) {
countchecks = countchecks + 1;
}
});
if (ControlLength == countchecks) {
$("#chk" + sender.name).attr('checked', 'checked');
}
else {
$("#chk" + sender.name).prop('checked', false);
}
}
function PickAllCheckedRows() {
}
</script>

As far as I can tell your code should work if you fix one issue. You are determining the number of sub rows that need to be checked to make the header row be checked using $("[name='" + sender.name + "']").length;. But unless I'm mistaken sender.name is never set. Of course if you set it this still won't work because your each function will include the header row. There are several solutions to this but I would recommend using a data attribute instead of the name attribute like so:
Markup:
<table>
<tr>
<!-- head -->
<td><input type="checkbox" data-head-for-group="Group1" ... /></td>
</tr>
<tr>
<!-- row 1 -->
<td><input type="checkbox" data-in-group="Group1" ... /></td>
</tr>
<tr>
<!-- row 2 -->
<td><input type="checkbox" data-in-group="Group1" ... /></td>
</tr>
<tr>
<!-- head -->
<td><input type="checkbox" data-head-for-group="Group2" ... /></td>
</tr>
<tr>
<!-- row 3 -->
<td><input type="checkbox" data-in-group="Group2" ... /></td>
</tr>
</table>
Script:
function CheckCorrespondingHeader(sender) {
var group = $("[data-in-group='" + sender.data('headForGroup') + "']");
var groupSize = group.length;
var countchecks = 0;
group.each(function () {
if ($(this).prop('checked') === true) {
countchecks = countchecks + 1;
}
});
if (groupSize === countchecks) {
$(sender).attr('checked', 'checked');
} else {
$(sender).prop('checked', false);
}
}

How to substract checkbox value when combobox change

I have an issue with my code. How to substract checkbox value when combobox change. I hope anybody here can help me.
Here is my js code:
//javascript for adding checkbox value and display in text.
<script>
$(document).ready(function(){
$('input[type=checkbox]').click(function(e){
$('#txtInput').val($(this).val())
var total = 0;
var text;
$("input[type=checkbox]:checked").each(function(i,ch) {
total += parseFloat($(this).val());
});
$("#txtInput").val(total);
});
});
</script>
//javascript for substract checkbox value when combobox change
<script>
$(document).ready(function(){
$('.xyz').change(function(){
var tmp = $(this).closest('tr').find("input[type='checkbox']").attr('id');
var substract = 0;
$('#'+tmp+'').prop("checked",false)+(substract -= parseFloat($('#'+tmp+'').val()));
$("#txtInput").val(substract);
});
});
And here is my HTML code:
<table>
<tr>
<th>SELECTION</th>
<th>ACTION</th>
<th>FOOD NAME</th>
</tr>
<tr>
<td><select class="xyz" name="xyz1" id="xyz1"><option >Cancel</option>
<option>Take</option></select></td>
<td><input type="checkbox" name="check1" id="check1" value="1" /></td>
<td>French Fries</td>
</tr>
<tr>
<td><select class="xyz" name="xyz2" id="xyz2"><option >Cancel</option>
<option>Take</option></select></td>
<td><input type="checkbox" name="check2" id="check2" value="3" /></td>
<td>Pizza</td>
</tr>
<tr>
<td><select class="xyz" name="xyz3" id="xyz3"><option >Cancel</option>
<option>Take</option></select></td>
<td><input type="checkbox" name="check3" id="check3" value="5" /></td>
<td>Beef Burger</td>
</tr>
</table>
<input type="text" name="txtInput" id="txtInput" />
First, if I select "Take" in combobox and click checkbox the value will be shown into text.
Second, if I do it again the checkbox will be add the value and show the result into text.
Third, this my problem. If I change combobox into "Cancel" the checkbox only uncheck but can't decrease the value. I want if I change combobox into "Cancel" the value decrease according checkbox selection value and checkbox uncheck.
For any help, I really appreciate it. Thanks.

Make a common function which will read the state of the input elements and do the calculations accordingly.
.parents(selector) will traverse up and will returned matched element.
Try this:
var doCalc = function() {
var total = 0;
var text;
$("input[type=checkbox]:checked").each(function(i, ch) {
if ($(this).parents('tr').find('select option:selected').text() == 'Take') {
total += parseFloat($(this).val());
}
});
$("#txtInput").val(total);
}
$('input[type=checkbox]').change(doCalc);
$('.xyz').change(function() {
if ($(this).find('option:selected').text() == 'Cancel') {
$(this).parents('tr').find('input[type="checkbox"]').prop('checked', false);
}
doCalc();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<table>
<tr>
<th>SELECTION</th>
<th>ACTION</th>
<th>FOOD NAME</th>
</tr>
<tr>
<td>
<select class="xyz" name="xyz1" id="xyz1">
<option>Cancel</option>
<option>Take</option>
</select>
</td>
<td>
<input type="checkbox" name="check1" id="check1" value="1" />
</td>
<td>French Fries</td>
</tr>
<tr>
<td>
<select class="xyz" name="xyz2" id="xyz2">
<option>Cancel</option>
<option>Take</option>
</select>
</td>
<td>
<input type="checkbox" name="check2" id="check2" value="3" />
</td>
<td>Pizza</td>
</tr>
<tr>
<td>
<select class="xyz" name="xyz3" id="xyz3">
<option>Cancel</option>
<option>Take</option>
</select>
</td>
<td>
<input type="checkbox" name="check3" id="check3" value="5" />
</td>
<td>Beef Burger</td>
</tr>
</table>
<input type="text" name="txtInput" id="txtInput" />
Fiddle here

On Radio Select, show different checkbox selection

I'm looking for a Javascript or jQuery solution, either works.
Anyway, when a user selects one of the choices for the radio buttons, I want a different set of checkboxes to show up. So, if a user chooses By Name, the name checkboxes will show up. And then when the user chooses By Title, the name checkboxes will disappear and the title checkboxes will show up.
When a page loads, and an option is not chosen, no checkboxes should appear
Here is what the HTML looks like:
<table>
<tr>
<td><input type="radio" name="selectType" value="byName" />By Name</td>
<td><input type="radio" name="selectType" value="byTitle" />By Title</td>
</tr>
<tr>
<td>
<input type="checkbox" name="selectName1" />Name 1</td>
</tr>
<tr>
<td>
<input type="checkbox" name="selectName1" />Name 2</td>
</tr>
<tr>
<td>
<input type="checkbox" name="selectTitle1" />Title 1</td>
</tr>
<tr>
<td>
<input type="checkbox" name="selectTitle2" />Title 2</td>
</tr>
</table>
What would this code look like?

I would use data attributes to reference groups of checkboxes. This way you can make your code really flexible and unobtrusive:
$('.type-check').change(function() {
$('.type-group').hide().filter('.type-group-' + $(this).data('type')).show();
});
HTML sample:
<tr>
<td><input type="radio" name="selectType" class="type-check" data-type="name" value="byName" /> By Name</td>
<td><input type="radio" name="selectType" class="type-check" data-type="title" value="byTitle" /> By Title</td>
</tr>
http://jsfiddle.net/D8s9G/

First give your checkboxes classes..
<input type="checkbox" name="selectName1" class="name"/>Name 1
<input type="checkbox" name="selectName2" class="name"/>Name 2
do the same for titles and give them a class name of 'title' and for your radios too..
<input type="radio" name="selectType" value="byName" class="radioName" />
then;
$(document).ready(function () {
$('.radioName').click(function () {
$('.name').show();
$('.title').hide();
});
//same logic for titles..
});

Here is a working solution - http://jsfiddle.net/FloydPink/fkvSg/
jQuery:
$('.name').closest('tr').toggle(false);
$('.title').closest('tr').toggle(false);
$('input[name=selectType]').change(function () {
var byNameSelected = $(this).val() == 'byName';
$('.name').closest('tr').toggle(byNameSelected);
$('.title').closest('tr').toggle(!byNameSelected);
});
HTML:
<table>
<tr>
<td>
<input type="radio" name="selectType" value="byName" />By Name</td>
<td>
<input type="radio" name="selectType" value="byTitle" />By Title</td>
</tr>
<tr>
<td>
<input type="checkbox" class="name" name="selectName1" />Name 1</td>
</tr>
<tr>
<td>
<input type="checkbox" class="name" name="selectName2" />Name 2</td>
</tr>
<tr>
<td>
<input type="checkbox" class="title" name="selectTitle1" />Title 1</td>
</tr>
<tr>
<td>
<input type="checkbox" class="title" name="selectTitle2" />Title 2</td>
</tr>
</table>
I have added css classes to all the four checkboxes, so that the group of 'Name' and 'Title' checkboxes could be grouped.

You can select the inputs with their name and show or hide the relevant inputs:
$('input[value*="byName"]').click( function() {
$('input[name*="selectName1"]').show();
$('input[name*="selectTitle1"]').hide();
}
$('input[value*="byTitle"]').click( function() {
$('input[name*="selectName1"]').hide();
$('input[name*="selectTitle1"]').show();
}