user1547174 user1547174 - 5 months ago 22
jQuery Question

Datatables improperly sized in bootstrap tab

I have a page that has three bootstrap tabs and a datatable in each tab. The datatable in the first tab works fine. However, the datatable in the second tab is at half-width and I have no idea why. There's no css applied to it either.

Here's a screenshot of the first tab (works fine)
Tab 1 - works

And the 2nd tab (datatable at half width)
tab 2 - datatable at half width

My code:

$('#companies').DataTable({ //table in tab 1 (works fine)
responsive: true
});


$('#companies2').DataTable({ //table in tab 2
responsive: true
});


My html:

<!-- tab start -->
<div class="container">
<div class="row">
<div class="col-md-12">
<h1>Tabs</h1>
<ul class="nav nav-tabs">
<li class="active"><a href="#tab1" data-toggle="tab">Section 1</a></li>
<li><a href="#tab2" data-toggle="tab">Section 2</a></li>
<li><a href="#tab3" data-toggle="tab">Section 3</a></li>
</ul>

<!-- tab sections -->
<div class="tab-content">
<div class="tab-pane active" id="tab1">
<table id="companies" class="table table-striped table-bordered dt-responsive nowrap" cellspacing="0">
<thead>
<tr>
<th>Company ID</th>
<th>Company Name</th>
<th>Status</th>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
{{#each context}}
{{#if setup}}
<tr>
<td>{{company_id}}</td>
<td>{{company_name}}</td>
{{#if is_approved}}
<td>Approved</td>
{{else}}
<td>Not Approved</td>
{{/if}}
<td><a href="/admin/viewclientorders/{{company_id}}">View Orders</a></td>
<td><a href="/admin/company/{{company_id}}">View Details</a></td>
</tr>
{{/if}}
{{/each}}
</tbody>
</table>
</div>
<div class="tab-pane" id="tab2">
<table id="companies2" class="table table-striped table-bordered dt-responsive nowrap" cellspacing="0">
<thead>
<tr>
<th>Company ID</th>
<th>Company Name</th>
<th>Create Date</th>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
{{#each context}}
{{#unless setup}}
<tr>
<td>{{company_id}}</td>
<td>{{company_name}}</td>
<td>{{created_at}}</td>
<td><button class="btn btn-primary setup"><a href="/admin/companies/setup_company/{{company_id}}">Setup</a></button></td>
<td><button class="btn btn-danger delete">Ignore</button></td>
</tr>
{{/unless}}
{{/each}}
</tbody>
</table>
</div>
<div class="tab-pane" id="tab3">
3rd
</div>

</div>


Can someone help? Thanks in advance!

Answer

Keep the dataTable instances, i.e.

var companies2 = $('#companies2').DataTable({
  responsive: true
})

Then use columns.adjust() to recalculate the widths when the tab holding the table becomes visible :

$('a[data-toggle="tab"]').on('shown.bs.tab', function(e) {
  if (e.target.hash == '#tab2') {
    companies2.columns.adjust().draw()
  }
})

Completely untested with your specific scenario, but this is certainly the way to go.

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