How to center align datatables header

Question

I'm new to datatables. When I make table header, it's always left align. How can I set the header to center align? I've read datatables.net/manual/styling/classes and datatables.net/reference/option/columns.className but still don't know how to implement it.

$('.table').DataTable({
  "paging": true,
  "lengthChange": true,
  "searching": true,
  "ordering": true,
  "info": true,
  "language": {
    "url": "http://cdn.datatables.net/plug-ins/1.10.9/i18n/Indonesian.json"
  }
  "columnDefs": {
    {
      className: "dt-head-center"
    }
  }
});

Answer 1

OP, you were super close to the solution, just missing the targets option in columnDefs to assign the dt-head-center class to the header you want to style.

// apply to columns 1 & 2
targets: [ 0, 1 ]

CSS is an option but not necessary.

I like the DataTables suggested method of using the column.className option for the styling of cells then apply them using targets. https://datatables.net/reference/option/columns.className This gives us a finer level of control as opposed to a global CSS application.

This will align header and body content individually:

columnDefs: [
    // Center align the header content of column 1
   { className: "dt-head-center", targets: [ 0 ] },
   // Center align the body content of columns 2, 3, & 4
   { className: "dt-body-center", targets: [ 1, 2, 3 ] }
]

or align them both at the same time:

columnDefs: [
   // Center align both header and body content of columns 1, 2 & 3
   { className: "dt-center", targets: [ 0, 1, 2 ] }
]

Cell class format:

dt[-head|-body][-left|-center|-right|-justify|-nowrap]

More info on DataTables cell classes: https://datatables.net/manual/styling/classes#Cell-classes

Answer 2

You might have forgotten after specifying the class, you need to add the following in CSS:

.dt-head-center {text-align: center;}

Also, if the class has not been added to the <th> of the table, try adding the below CSS for generic stuff:

thead, th {text-align: center;}

/* OR */

.table thead,
.table th {text-align: center;}

To make it specific to a particular table, you can give the table an id="tableID" and then in the CSS, you can do:

#tableID thead,
#tableID th {text-align: center;}

Answer 3

You can do this with CSS. Just use your table class as a selector and target every table heading inside that selector, like this:

.table th {
  text-align: center;
}

Answer 4

by using this style :

table.center-all td,th{
    text-align :center;
}

I can add the center-all class to my table and everything will be aligned to center. like this :

<table class="center-all">
    ....
</table

In this way I have the option to center the content of some tables without need to apply it to the whole page/site