Answers for "datatable sorting"

order datatable

$(document).ready(function() {
    $('#example').DataTable( {
        "order": [[ 3, "desc" ]]
    } );
} );

jquery datatables turn off sorting

$('#table').dataTable({ "bSort" : false } );

datatable desc active

$('#exemple').DataTable({
    "order": [[ 3, "desc" ]], //or asc 
    "columnDefs" : [{"targets":3, "type":"date-eu"}],
});

sort datatable c#

Datatable.DefaultView.Sort = "Preferance ASC";