Hi.
I can not understand for what is used options in DataColumns
When I used the code in attribute of columns
'options'=>['class'=>'text-center'],
I just get this code before thead:
<colgroup><col>
<col>
<col class="text-center">
<col>
<col>
<col>
<col>
<col>
<col></colgroup>
How to use options? Someone could give an example?