Malthe
1
I have a Datatable and want to show extra information in child. I use the same code as here: DataTables example - Child rows (show extra / detailed information)
But on first click on first column the child is not shown. The source code before clicking:
<tr></tr>
after first click the arrow shows downwards and sourcecode looks like this:
<tr class="dtr-expanded"></tr>
after second click the child is shown (arrow shows to the right) and code looks like this:
<tr class="dt-hasChild selected"></tr>
If I debug the code in js “row.child.isShown()” returns false on first click. Maybe there is a problem with the select-column?
thx in advance
©a-x-i
Alfred
2
<table id="example" class="display" style="width:100%">
<thead>
<tr>
<th></th>
<th>Name</th>
<th>Position</th>
<th>Office</th>
<th>Age</th>
<th>Start date</th>
<th>Salary</th>
</tr>
</thead>
<tbody>
<!-- Data Rows Here -->
</tbody>
</table>
$(document).ready(function() {
var table = $('#example').DataTable({
"columnDefs": [
{
"className": 'details-control',
"orderable": false,
"targets": 0
}
],
"order": [[1, 'asc']]
});
// Add event listener for opening and closing details
$('#example tbody').on('click', 'td.details-control', function () {
var tr = $(this).closest('tr');
var row = table.row(tr);
if (row.child.isShown()) {
// This row is already open - close it
row.child.hide();
tr.removeClass('shown');
}
else {
// Open this row
row.child(format(row.data())).show();
tr.addClass('shown');
}
});
});
// Formatting function for row details
function format(d) {
// `d` is the original data object for the row
return '<div>' +
'<strong>Full name:</strong> ' + d[1] + '<br>' +
'<strong>Extension number:</strong> ' + d[2] + '<br>' +
'<strong>Extra info:</strong> ' + d[3] +
'</div>';
}
td.details-control {
background: url('data:image/svg+xml;charset=utf8,<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24"><path d="M7 10l5 5 5-5H7z"/></svg>') no-repeat center center;
cursor: pointer;
}
tr.shown td.details-control {
background: url('data:image/svg+xml;charset=utf8,<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24"><path d="M7 14l5-5 5 5H7z"/></svg>') no-repeat center center;
}
Troubleshooting Checklist
- Check Initialization Code: Ensure the DataTable initialization code is correct and includes the necessary configurations for child rows.
- Inspect Event Handling: Verify that the click event listener for toggling child rows is correctly bound and triggers as expected.
- Verify Data: Ensure that the
format
function correctly returns HTML for the child row details and that the data passed to it is as expected.
- Debugging:
- Use browser developer tools to inspect the HTML structure and verify if child rows are being added correctly.
- Check for any JavaScript errors in the console that might indicate issues with the code.
- Library Version Compatibility: Ensure that you are using compatible versions of DataTables and any other related libraries or plugins.