problem description
the fixed columns of this plug-in cannot be sorted, and all other columns can be sorted
the environmental background of the problems and what methods you have tried
<table class="table-striped table-hasthead nowrap" id="tableTest1" data-search="true" data-fixed-columns="true" data-fixed-number="3">
<thead>
<tr>
<th></th>
<th data-sortable="true"></th>
<th data-sortable="true"></th>
<th data-sortable="true"></th>
<th data-sortable="true"></th>
<th data-sortable="true"></th>
<th data-sortable="true"></th>
<th data-sortable="true"></th>
<th data-sortable="true"></th>
<th data-sortable="true"></th>
<th data-sortable="true"></th>
<th class="lastcolumn"></th>
</tr>
</thead>
<tbody>