I have code as follows:
$(document).ready(function() {
$('#example').DataTable({
"bLengthChange" : false,
"paging": false,
"bFilter": false,
"columnDefs": [ {
"targets" : 'no-sort',
"orderable": false,
}],
"order": []
});
$('#example th').click(function(e) {
let clicked_col_class = $(this).attr('class');
if(clicked_col_class.includes('office')){
$('#example tbody tr.xbg-dark-grey').removeClass('xbg-dark-grey').addClass('bg-dark-grey');
}else{
$('#example tbody tr.bg-dark-grey').removeClass('bg-dark-grey').addClass('xbg-dark-grey');
}
});
} );.bg-dark-grey{
background-color: rgba(0,0,0,.05) !important;
}
.bg-white{
background-color: #ffffff !important;
}<link rel="stylesheet" href="https://cdn.datatables.net/1.10.22/css/jquery.dataTables.min.css">
<table id="example" class="xdisplay" style="width:100%">
<thead>
<tr>
<th class="no-sort">Name</th>
<th class="no-sort">Position</th>
<th class="office">Office</th>
<th>Age</th>
<th class="no-sort">Start date</th>
<th>Salary</th>
</tr>
</thead>
<tbody>
<tr class="bg-white">
<td>Tiger Nixon</td>
<td>System Architect</td>
<td>Edinburgh</td>
<td>61</td>
<td>2011/04/25</td>
<td>$320,800</td>
</tr>
<tr class="bg-white">
<td>Quinn Flynn</td>
<td>Support Lead</td>
<td>Edinburgh</td>
<td>22</td>
<td>2013/03/03</td>
<td>$342,000</td>
</tr>
<tr class="bg-white">
<td>Cedric Kelly</td>
<td>Senior Javascript Developer</td>
<td>Edinburgh</td>
<td>22</td>
<td>2012/03/29</td>
<td>$433,060</td>
</tr>
<tr class="bg-white">
<td>Sonya Frost</td>
<td>Software Engineer</td>
<td>Edinburgh</td>
<td>23</td>
<td>2008/12/13</td>
<td>$103,600</td>
</tr>
<tr class="bg-dark-grey">
<td>Ashton Cox</td>
<td>Junior Technical Author</td>
<td>San Francisco</td>
<td>66</td>
<td>2009/01/12</td>
<td>$86,000</td>
</tr>
<tr class="bg-dark-grey">
<td>Herrod Chandler</td>
<td>Sales Assistant</td>
<td>San Francisco</td>
<td>59</td>
<td>2012/08/06</td>
<td>$137,500</td>
</tr>
<tr class="bg-white">
<td>Garrett Winters</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>63</td>
<td>2011/07/25</td>
<td>$170,750</td>
</tr>
<tr class="bg-white">
<td>Airi Satou</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>33</td>
<td>2008/11/28</td>
<td>$162,700</td>
</tr>
<tr class="bg-white">
<td>Rhona Davidson</td>
<td>Integration Specialist</td>
<td>Tokyo</td>
<td>55</td>
<td>2010/10/14</td>
<td>$327,900</td>
</tr>
<tr class="bg-dark-grey">
<td>Brielle Williamson</td>
<td>Integration Specialist</td>
<td>New York</td>
<td>61</td>
<td>2012/12/02</td>
<td>$372,000</td>
</tr>
<tr class="bg-dark-grey">
<td>Paul Byrd</td>
<td>Chief Financial Officer (CFO)</td>
<td>New York</td>
<td>64</td>
<td>2010/06/09</td>
<td>$725,000</td>
</tr>
<tr class="bg-dark-grey">
<td>Gloria Little</td>
<td>Systems Administrator</td>
<td>New York</td>
<td>59</td>
<td>2009/04/10</td>
<td>$237,500</td>
</tr>
<tr class="bg-white">
<td>Jena Gaines</td>
<td>Office Manager</td>
<td>London</td>
<td>30</td>
<td>2008/12/19</td>
<td>$90,560</td>
</tr>
<tr class="bg-white">
<td>Haley Kennedy</td>
<td>Senior Marketing Designer</td>
<td>London</td>
<td>43</td>
<td>2012/12/18</td>
<td>$313,500</td>
</tr>
<tr class="bg-white">
<td>Tatyana Fitzpatrick</td>
<td>Regional Director</td>
<td>London</td>
<td>19</td>
<td>2010/03/17</td>
<td>$385,750</td>
</tr>
<tr class="bg-white">
<td>Michael Silva</td>
<td>Marketing Designer</td>
<td>London</td>
<td>66</td>
<td>2012/11/27</td>
<td>$198,500</td>
</tr>
<tr class="bg-white">
<td>Bradley Greer</td>
<td>Software Engineer</td>
<td>London</td>
<td>41</td>
<td>2012/10/13</td>
<td>$132,000</td>
</tr>
</tbody>
</table>
<script src="https://code.jquery.com/jquery-3.5.1.js"></script>
<script src="https://cdn.datatables.net/1.10.22/js/jquery.dataTables.min.js"></script>Here, I have used tr class bg-white and bg-dark-grey manually. However, in real case scenario there is a simple logic on php. It is something like
$bg_class = '';
foreach($data as $dv){
if($old_office != $dv->office){
if($bg_class == 'bg-white'){
$bg_class = 'bg-dark-grey';
}else{
$bg_class = 'bg-white';
}
$old_office = $dv->office;
}
}
However, you can ignore this php logic just remember that initially on even row group of office there will be background: dark-grey. On this initial scenario: San Francisco and New York will have a background as they are even row (office) group.
Edinburgh
San Francisco //even (bg-grey)
Tokyo
New York //even (bg-grey)
London
For ordering other than the office column none of the rows will the background and I have already implemented logic for that one.
But, whenever I tried sorting with the office column. Let's consider sorting_asc condition:
Edinburgh
London
New York //(bg-grey)
San Francisco //(bg-grey)
Tokyo
In this case scenario, wrong row groups are having a background. As it is a client side datatable, php logic won't be executing again. So, I need some help so that I could add bacground to correct group whenever it is sorted based on office column. So my desired result are:
##For sorting_asc (office column)
Edinburgh
Edinburgh
Edinburgh
Edinburgh
London //desired-grey-row
London //desired-grey-row
London //desired-grey-row
London //desired-grey-row
London //desired-grey-row
New York
New York
New York
San Francisco //desired-grey-row
San Francisco //desired-grey-row
Tokyo
Tokyo
Tokyo
##For sorting_desc (office column) (consider group not single row)
Tokyo
San Francisco //desired-grey-row
New York
London //desired-grey-row
Edinburgh
i.e every even group row needs to have a grey background.