How to hide element correctly in html tables - javascript

I would like to behind row2by default and by clicking tables,it will show itself.
When I try my work like below,row2 is behind. but the shape of tables distorted.
I would like to align tables and behind row2 by deafault.
How can I fix it ?
Why this table distorted?
Thanks
$(function() {
$("table").click(function() {
$("table tr:eq(1)").toggleClass('show');
});
});
td {
padding:5px;
border:solid black 1px;}
table{
border-collapse:collapse;
border:solid black 1px;
cursor:pointer}
tr:nth-child(2):not([class]) {
display: none;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<th rowspan="2">header</th>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
<td>5</td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<th rowspan="2">header</th>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
<td>5</td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</table>


If you want to toggle the row, I suggest you have a concept of "hide", rather than "show".
Also, get rid of the second row header. Not sure why you need it, if you are spanning 2 rows.
$(() => {
$('table').click(function(e) {
$(this).find('tr:eq(1)').toggleClass('hide');
});
});
table, th, td {
border: solid black 1px;
}
table {
border-collapse: collapse;
}
th, td {
padding: 0.25em;
}
th {
cursor: pointer
}
.hide {
display: none;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<thead></thead>
<tbody>
<tr>
<th rowspan="2">Header</th>
<td>01</td>
<td>02</td>
<td>03</td>
<td>04</td>
<td>05</td>
</tr>
<tr class="hide">
<td>06</td>
<td>07</td>
<td>08</td>
<td>09</td>
<td>10</td>
</tr>
</tbody>
</table>

Related

How to give an empty td a class?

I am displaying a table. Some cells of this table are filled with content. But there are some cells that are empty. What i want is that all empty cells have a different background color. How can i do that?
How can i check if a td is empty?

You can use :empty selector:
Demo:
//You can loop and remove the space charcater from cells
document.querySelectorAll('table tr > td').forEach(c => c.textContent = c.textContent.trim());
table, th, td {
border: 1px solid black;
}
table tr > td:empty {
background-color: yellow;
}
<table>
<tr>
<th>Month</th>
<th>Savings</th>
</tr>
<tr>
<td>January</td>
<td>$100</td>
</tr>
<tr>
<td>February</td>
<td></td>
</tr>
<tr>
<td>March</td>
<td>$90</td>
</tr>
<tr>
<td>May</td>
<td> </td>
</tr>
</table>

You can use js/jquery to check if a cell is empty or not. Based on that you can add a class and give a background-color to the same.
Or if you want a css only approach, you can use :empty selector. But the problem with :empty is that it will not consider a td an empty one if there is just a few space in it. Check the below snippet.
$(document).ready(function () {
$("table td").each(function (index, eachCell) {
if ($(eachCell).html().trim().length === 0) {
$(eachCell).addClass("empty-cell");
}
});
});
.empty-cell {
background-color: red;
}
td {
border: 1px solid #ddd;
padding: 5px;
}
td:empty {
background-color: yellow;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tbody>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
</tr>
<tr>
<td>1</td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>1</td>
<td>2</td>
<td> </td>
</tr>
</tbody>
</table>

How to remove class at serial cells in html tables

Some event were registered in calendar like html tables.
I would like to unregister these event by clicking them.
To realize this,I would like to removeclass continuous cells. like
When we click3or4,then 3,4 cell's class will be removed.
When we click 13or14or15,then 13,14,15 cell's class will be removed.
When we click 9, then only 9 cell's class will be removed.
Is it possible?
and are there any way to realize it?
Thanks
$(function() {
$("td").click(function() {
$(this).removeClass();
});
});
td {
transition-duration: 0.5s;
border: solid black 1px;
padding: 5px;
}
table {
border-collapse: collapse;
}
.aqua{
background-color:aqua;}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<td>1</td>
<td>2</td>
<td class='aqua'>3</td>
<td class='aqua'>4</td>
<td>5</td>
</tr>
<tr>
<td>6</td>
<td>7</td>
<td>8</td>
<td class='aqua'>9</td>
<td>10</td>
</tr>
<tr>
<td>11</td>
<td>12</td>
<td class='aqua'>13</td>
<td class='aqua'>14</td>
<td class='aqua'>15</td>
</tr>
</table>

You can first use .closest() to target the parent tr element then use .find() to target all the element with the class aqua to remove them:
$(function() {
$("td").click(function() {
$(this).closest('tr').find('.aqua').removeClass('aqua');
});
});
td {
transition-duration: 0.5s;
border: solid black 1px;
padding: 5px;
}
table {
border-collapse: collapse;
}
.aqua{
background-color:aqua;}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<td>1</td>
<td>2</td>
<td class='aqua'>3</td>
<td class='aqua'>4</td>
<td>5</td>
</tr>
<tr>
<td>6</td>
<td>7</td>
<td>8</td>
<td class='aqua'>9</td>
<td>10</td>
</tr>
<tr>
<td>11</td>
<td>12</td>
<td class='aqua'>13</td>
<td class='aqua'>14</td>
<td class='aqua'>15</td>
</tr>
</table>

If you just change your script like below. Your code will work perfectly according to your requirement.
$(function() {
$("tr").click(function() {
$(this).children().removeClass();
});
});
or else you can change like below as well. It also work perfectly.
$(function() {
$("td").click(function() {
$(this).closest('tr').find('.aqua').removeClass('aqua');
});
});
Best Answer is using second method.

You can simply target only the cells having that aqua class to achieve this, instead of targeting every cell. Then using .closest('tr') find the closest parent tr for the clicked cell and after that using .find('td.aqua') find all the cells having the class aqua and then finally remove the class from each of them.
$(function() {
$("td.aqua").click(function() {
$(this).closest('tr').find('td.aqua').removeClass('aqua');
});
});
td{transition-duration:.5s;border:solid #000 1px;padding:10px;text-align:center}
table{border-collapse:collapse}
.aqua{background-color:#0ff}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<td>1</td>
<td>2</td>
<td class='aqua'>3</td>
<td class='aqua'>4</td>
<td>5</td>
</tr>
<tr>
<td>6</td>
<td>7</td>
<td>8</td>
<td class='aqua'>9</td>
<td>10</td>
</tr>
<tr>
<td>11</td>
<td>12</td>
<td class='aqua'>13</td>
<td class='aqua'>14</td>
<td class='aqua'>15</td>
</tr>
</table>

if you want to remove aqua class when clicking each row then use this
$(function() {
$("tr").click(function() {
$(this).children().removeClass('aqua');
});
});
OR when clicking on the cells themselves use this
$(function() {
$("tr>.aqua").click(function() {
$(this).parent().children().removeClass('aqua');
});
});
$(function() {
$("tr>.aqua").click(function() {
$(this).parent().children().removeClass('aqua');
});
});
td {
transition-duration: 0.5s;
border: solid black 1px;
padding: 5px;
}
table {
border-collapse: collapse;
}
.aqua {
background-color: aqua;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<td>1</td>
<td>2</td>
<td class='aqua'>3</td>
<td class='aqua'>4</td>
<td>5</td>
</tr>
<tr>
<td>6</td>
<td>7</td>
<td>8</td>
<td class='aqua'>9</td>
<td>10</td>
</tr>
<tr>
<td>11</td>
<td>12</td>
<td class='aqua'>13</td>
<td class='aqua'>14</td>
<td class='aqua'>15</td>
</tr>
</table>

How do I remove a row from a table

Below code removes the row if it contains an empty cell in the 3rd column.
It makes use of Jquery's fadeOut-method for a nice effect.
Thing is that I can't get the code working without the faeOut method.
I tried $(this).remove(); but that does not work.
function TT(){
var A = 3;
$('table tbody tr td:nth-child(' + A + ')').each(function(index){
var cellValue = $("#tbl tr:eq(" + index + ") td:eq(" + A + ")").text();
if (cellValue.length === 0){
$(this).parents('tr').fadeOut(function(){
$(this).remove();
});
}
});
}
table {
margin: 10px;
font-family: arial, sans-serif;
border-collapse: collapse;
width: 95%;
}
td, th {
border: 1px solid #dddddd;
text-align: left;
padding: 8px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table id='tbl'>
<tr>
<td>A1</td>
<td>B1</td>
<td>C1</td>
<td>D1</td>
<td>E1</td>
<td>F1</td>
<td>G1</td>
<td>H1</td>
</tr>
<tr>
<td>A2</td>
<td>B2</td>
<td>C2</td>
<td></td>
<td>E2</td>
<td>F2</td>
<td>G2</td>
<td>H2</td>
</tr>
<tr>
<td>A3</td>
<td>B3</td>
<td>C3</td>
<td>D3</td>
<td>E3</td>
<td>F3</td>
<td>G3</td>
<td>H3</td>
</tr>
<tr>
<td>A4</td>
<td>B4</td>
<td>C4</td>
<td>D4</td>
<td>E4</td>
<td>F4</td>
<td>G4</td>
<td>H4</td>
</tr>
<tr>
<td>A5</td>
<td>B5</td>
<td>C5</td>
<td></td>
<td>E5</td>
<td>F5</td>
<td>G5</td>
<td>H5</td>
</tr>
<tr>
<td>A6</td>
<td>B6</td>
<td>C6</td>
<td></td>
<td>E6</td>
<td>F6</td>
<td>G6</td>
<td>H6</td>
</tr>
<tr>
<td>A7</td>
<td>B7</td>
<td>C7</td>
<td>D7</td>
<td>E7</td>
<td>F7</td>
<td>G7</td>
<td>H7</td>
</tr>
<tr>
<td>A8</td>
<td>B8</td>
<td>C8</td>
<td></td>
<td>E8</td>
<td>F8</td>
<td>G8</td>
<td>H8</td>
</tr>
<tr>
<td>A9</td>
<td>B9</td>
<td>C9</td>
<td>D9</td>
<td>E9</td>
<td>F9</td>
<td>G9</td>
<td>H9</td>
</tr>
<tr>
<td>A10</td>
<td>B10</td>
<td>C10</td>
<td>D10</td>
<td>E10</td>
<td>F10</td>
<td>G10</td>
<td>H10</td>
</tr>
<tr>
<td>A11</td>
<td>B11</td>
<td>C11</td>
<td>D11</td>
<td>E11</td>
<td>F11</td>
<td>G11</td>
<td>H11</td>
</tr>
</table>
</br>
<button type="button" onclick="TT()">Click Me!</button>

Multiple times you are querying “table” .which is not required. Only the first loop to iterate through all 3rd column elements is sufficient to find out if the cell is empty and to remove the complete row.
function TT(){
var A = 4;
$('table tbody tr td:nth-child(' + A + ')')
.each(function(index){
if($(this).text()=="" ) {$(this).parent().remove();}
});
}
table {
margin: 10px;
font-family: arial, sans-serif;
border-collapse: collapse;
width: 95%;
}
td, th {
border: 1px solid #dddddd;
text-align: left;
padding: 8px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table id='tbl'>
<tr>
<td>A1</td>
<td>B1</td>
<td>C1</td>
<td>D1</td>
<td>E1</td>
<td>F1</td>
<td>G1</td>
<td>H1</td>
</tr>
<tr>
<td>A2</td>
<td>B2</td>
<td>C2</td>
<td></td>
<td>E2</td>
<td>F2</td>
<td>G2</td>
<td>H2</td>
</tr>
<tr>
<td>A3</td>
<td>B3</td>
<td>C3</td>
<td>D3</td>
<td>E3</td>
<td>F3</td>
<td>G3</td>
<td>H3</td>
</tr>
<tr>
<td>A4</td>
<td>B4</td>
<td>C4</td>
<td>D4</td>
<td>E4</td>
<td>F4</td>
<td>G4</td>
<td>H4</td>
</tr>
<tr>
<td>A5</td>
<td>B5</td>
<td>C5</td>
<td>D5</td>
<td>E5</td>
<td>F5</td>
<td>G5</td>
<td>H5</td>
</tr>
<tr>
<td>A6</td>
<td>B6</td>
<td>C6</td>
<td>D6</td>
<td>E6</td>
<td>F6</td>
<td>G6</td>
<td>H6</td>
</tr>
</table>
</br>
<button type="button" onclick="TT()">Click Me!</button>

No need to use .each() you can just use .filter()
function TT(){
var A = 3;
$('table tbody tr').filter(function(){
return $('td:eq('+ A +')' , this).text() == ''; // good to use `.text().trim()` to avoid any white-spaces
}).remove();
}
table {
margin: 10px;
font-family: arial, sans-serif;
border-collapse: collapse;
width: 95%;
}
td, th {
border: 1px solid #dddddd;
text-align: left;
padding: 8px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table id='tbl'>
<tr>
<td>A1</td>
<td>B1</td>
<td>C1</td>
<td>D1</td>
<td>E1</td>
<td>F1</td>
<td>G1</td>
<td>H1</td>
</tr>
<tr>
<td>A2</td>
<td>B2</td>
<td>C2</td>
<td></td>
<td>E2</td>
<td>F2</td>
<td>G2</td>
<td>H2</td>
</tr>
<tr>
<td>A3</td>
<td>B3</td>
<td>C3</td>
<td>D3</td>
<td>E3</td>
<td>F3</td>
<td>G3</td>
<td>H3</td>
</tr>
<tr>
<td>A4</td>
<td>B4</td>
<td>C4</td>
<td>D4</td>
<td>E4</td>
<td>F4</td>
<td>G4</td>
<td>H4</td>
</tr>
<tr>
<td>A5</td>
<td>B5</td>
<td>C5</td>
<td></td>
<td>E5</td>
<td>F5</td>
<td>G5</td>
<td>H5</td>
</tr>
<tr>
<td>A6</td>
<td>B6</td>
<td>C6</td>
<td></td>
<td>E6</td>
<td>F6</td>
<td>G6</td>
<td>H6</td>
</tr>
<tr>
<td>A7</td>
<td>B7</td>
<td>C7</td>
<td>D7</td>
<td>E7</td>
<td>F7</td>
<td>G7</td>
<td>H7</td>
</tr>
<tr>
<td>A8</td>
<td>B8</td>
<td>C8</td>
<td></td>
<td>E8</td>
<td>F8</td>
<td>G8</td>
<td>H8</td>
</tr>
<tr>
<td>A9</td>
<td>B9</td>
<td>C9</td>
<td>D9</td>
<td>E9</td>
<td>F9</td>
<td>G9</td>
<td>H9</td>
</tr>
<tr>
<td>A10</td>
<td>B10</td>
<td>C10</td>
<td>D10</td>
<td>E10</td>
<td>F10</td>
<td>G10</td>
<td>H10</td>
</tr>
<tr>
<td>A11</td>
<td>B11</td>
<td>C11</td>
<td>D11</td>
<td>E11</td>
<td>F11</td>
<td>G11</td>
<td>H11</td>
</tr>
</table>
</br>
<button type="button" onclick="TT()">Click Me!</button>
Note: parent() , parents() , closest() all of those should work if you start from <td> .. but for me a simple thing is to start
from the <tr> not from the <td>
Another note: :nth-child(index) index starts from 1 .. and :eq(index) starts from 0

How can I change the background color of a td when a link in the td is clicked?

I have tried searching, but I am stuck.
Basically I am making a jeopardy game board; which I created using a table. I would like to change the background-color of the td after it has been clicked on. The challenge I am facing is that (1) I am using a link to direct to the question/answer (yes, I know this could be done other ways, but I need to learn more to advance and I am working on that); (2) After searching for answers, I can't seem to get it to work with the code I have.
Here is my [JSFiddle]https://jsfiddle.net/hLyauL5a/)
Html:
<table>
<thead>
<tr>
<th>Stuff</th>
<th>Stuff </th>
<th>Stuff</th>
<th>Stuff</th>
<th>Stuff</th>
</tr>
</thead>
<tbody>
<tr>
<td>100</td>
<td>100</td>
<td>100</td>
<td>100</td>
<td>100</td>
</tr>
<tr>
<td>200</td>
<td>200</td>
<td>200</td>
<td>200</td>
<td>200</td>
</tr>
<tr>
<td>300</td>
<td>300</td>
<td>300</td>
<td>300</td>
<td>300</td>
</tr>
<tr>
<td>400</td>
<td>400</td>
<td>400</td>
<td>400</td>
<td>400</td>
</tr>
<tr>
<td>500</td>
<td>500</td>
<td>500</td>
<td>500</td>
<td>500</td>
</tr>
</tbody>
</table>
CSS:
jQuery code:
$("table tr td").click(function() {
$(this).css("background", "#626975");
});
I would appreciate any help!

I see two problems. One, you have not included jquery or your javascript file in your html. Your jsfiddle does not have jquery loaded.
Two, assuming the above was just a problem getting your question across on Stack Overflow, you haven't waited for the document to load before attaching event listeners. The selector tries to select something that isn't there yet, and nothing is attached. What you need is:
$(document).on('ready', function(){
$("table tr td").click(function(e) {
$(this).css("background", "#626975");
});
});
Working example:
$(()=> {
$("table tr td").click(function() {
$(this).css("background", "#626975");
});
});
body {
cursor: pointer;
}
/*gameboard*/
table {
width: 100%;
border-collapse: collapse;
}
tr {
background: #1f293a;
color: #47ba04;
}
th {
background: #1f293a;
color: white;
font-weight: bold;
min-width: 200px;
}
td {
color: #47ba04;
background: #1f293a;
min-width: 100px;
height: 130px;
}
td,
th {
padding: 6px;
border: 1px solid #ccc;
text-align: center;
}
a {
color: #47ba04;
text-decoration: none;
}
/* For the question pages*/
#question,
#answers {
width: 100%;
height: 800px;
border: 1px solid black;
background-color: #1f293a;
color: white;
font-weight: bold;
}
div.question h2,
div.answers h2 {
margin: 0;
position: absolute;
top: 40%;
left: 50%;
margin-right: -50%;
transform: translate(-50%, -50%);
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<thead>
<tr>
<th>Stuff</th>
<th>Stuff</th>
<th>Stuff</th>
<th>Stuff</th>
<th>Stuff</th>
</tr>
</thead>
<tbody>
<tr>
<td>100
</td>
<td>100
</td>
<td>100
</td>
<td>100
</td>
<td>100
</td>
</tr>
<tr>
<td>200
</td>
<td>200
</td>
<td>200
</td>
<td>200
</td>
<td>200
</td>
</tr>
<tr>
<td>300
</td>
<td>300
</td>
<td>300
</td>
<td>300
</td>
<td>300
</td>
</tr>
<tr>
<td>400
</td>
<td>400
</td>
<td>400
</td>
<td>400
</td>
<td>400
</td>
</tr>
<tr>
<td>500
</td>
<td>500
</td>
<td>500
</td>
<td>500
</td>
<td>500
</td>
</tr>
</tbody>
</table>

You could launch the links in a new window by adding target="_blank" attribute to your anchor tags:
<td>100</td>

$('a').click(function(e){
e.preventDefault();
$(this).parent().css('background-color','blue');
});
So,using JQuery, if you click on an tag, don't jump on whatever link it is, you prevent the default event, then you get its parent which is the element and you add the css style as shown. Here is the html that I used as an example:
<table>
<tr>
<th>Month</th>
<th>Savings</th>
</tr>
<tr>
<td >Table</td>
<td bgcolor="#00FF00">$100</td>
</tr>

Generally, a hyperlinks like <a herf="" onclick="">contain two events: onclick and herf. The order of execution --- 'onclick' in front of 'herf'. so making onclick method return 'false' if you want to page can't jump on whatever link it is when you click hyperlink. Code is as follows.
$(function(){
$("a").on("click",function(){
$(this).css("background", "#626975");
return false;
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<thead>
<tr>
<th>Stuff</th>
<th>Stuff</th>
<th>Stuff</th>
</tr>
</thead>
<tbody>
<tr>
<td>100</td>
<td>100</td>
<td>100</td>
</tr>
</tbody>
</table>

Alternating row colours with nth-child and nth-of-type

Contrary to the duplicate notice, this question is not a duplicate. The purported duplicate does not address the case of nesting, something I've clearly explained in my question.
I have a table where rows can have one of two classes: parent or child. Some parents have many children, while others have no children. The HTML structure of the table, being flat, can not represent the hierarchical relationship between the rows; both parents and children are trs. Example:
Parent A
Child 1
Child 2
Parent B
Parent C
Child 1
I would like to stripe the rows so that odd and even parent rows have a color, and their respective children will have a lighter shade of the parent color.
Please see the included snippet for an example of what I'm trying to achieve.
table {
border-collapse: collapse;
width: 100%;
}
td {
border: 1px solid #eee;
padding: 10px;
}
.parentOdd {
background-color: #eb94fa;
}
.parentEven {
background-color: #c294fa;
}
.oddChild {
background-color: #f2c4fa;
}
.evenChild {
background-color: #d8bbfd;
}
<table>
<tbody>
<tr class="parentOdd">
<td>Parent A</td>
</tr>
<tr class="oddChild">
<td>A1</td>
</tr>
<tr class="oddChild">
<td>A2</td>
</tr>
<tr class="parentEven">
<td>Parent B</td>
</tr>
<tr class="parentOdd">
<td>Parent C</td>
</tr>
<tr class="oddChild">
<td>C1</td>
</tr>
<tr class="oddChild">
<td>C2</td>
</tr>
<tr class="parentEven">
<td>Parent D</td>
</tr>
<tr class="evenChild">
<td>D1</td>
</tr>
<tr class="evenChild">
<td>D2</td>
</tr>
</tbody>
</table>
I tried using CSS pseudo-selectors, but no luck.
.parent:nth-child(odd) {
background-color: green;
}
.parent:nth-child(even) {
background-color: blue;
}
The nth-child selector ignores the class. I tried using nth-of-type but that also ignored the class. And besides, both pseudo-selectors can't handle the case of the children.
Is what I'm trying to do possible in CSS? Or do I have to resort to JavaScript?

Is there any reason not to use multiple <tbody>s?
Grouping rows can make it easy.
table {
border-collapse: collapse;
width: 100%;
}
td {
border: 1px solid #eee;
padding: 10px;
}
tbody:nth-child(odd) > tr { /* odd child */
background-color: #f2c4fa;
}
tbody:nth-child(odd) > tr:nth-child(1) { /* odd parent */
background-color: #eb94fa;
}
tbody:nth-child(even) > tr { /* even child */
background-color: #d8bbfd;
}
tbody:nth-child(even) > tr:nth-child(1) { /* even parent */
background-color: #c294fa;
}
<table>
<tbody>
<tr>
<td>Parent A</td>
</tr>
<tr>
<td>A1</td>
</tr>
<tr>
<td>A2</td>
</tr>
</tbody>
<tbody>
<tr>
<td>Parent B</td>
</tr>
</tbody>
<tbody>
<tr>
<td>Parent C</td>
</tr>
<tr>
<td>C1</td>
</tr>
<tr>
<td>C2</td>
</tr>
</tbody>
<tbody>
<tr>
<td>Parent D</td>
</tr>
<tr>
<td>D1</td>
</tr>
<tr>
<td>D2</td>
</tr>
</tbody>
</table>

why not do some javascript?
var RowNumber = 0,
for(i = Rownumber + 1; i<=x*;i++) {
If (RowNumber % === 0) {
this.setAttribute('class', 'even');
} else {
this.setAttribute('class', 'odd');
}
});
create the even class and odd class and give each tr an id
*This is a note: Set x to equal the amount of rows in your table.
OR do a switch statement, I prefer a good ol' if statement but Switch could work just as well :)

Check this solution: http://fiddle.jshell.net/manzapanza/6vjLm0td/
table {
border-collapse: collapse;
width: 100%;
}
td {
border: 1px solid #eee;
padding: 10px;
}
.parentOdd {
background-color: #eb94fa;
}
.parentOdd.child:nth-child(odd) {
background-color: #F2C9F9;
}
.parentOdd.child:nth-child(even) {
background-color: #F9E1DC;
}
.parentEven {
background-color: #c294fa;
}
.parentEven.child:nth-child(odd) {
background-color: #E1CCFC;
}
.parentEven.child:nth-child(even) {
background-color: #EEE5FA;
}
<table>
<tbody>
<tr class="parentOdd">
<td>Parent A</td>
</tr>
<tr class="parentOdd child">
<td>A1</td>
</tr>
<tr class="parentOdd child">
<td>A2</td>
</tr>
<tr class="parentEven">
<td>Parent B</td>
</tr>
<tr class="parentOdd">
<td>Parent C</td>
</tr>
<tr class="parentOdd child">
<td>C1</td>
</tr>
<tr class="parentOdd child">
<td>C2</td>
</tr>
<tr class="parentEven">
<td>Parent D</td>
</tr>
<tr class="parentEven child">
<td>D1</td>
</tr>
<tr class="parentEven child">
<td>D2</td>
</tr>
</tbody>
</table>

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