将datatable中的所有整数列向右对齐,但orderable和searchable不起作用

下面是在我的数据表中将列对齐到右侧的代码

dataTable =  jQuery('#delivery-note-transmission-grid').DataTable( {
processing: true,
serverSide: true,
"lengthMenu": [10,25,50,100,500],
"order": [[ 0, "desc" ]],
"pageLength": 500,
         "columnDefs": [
         { className: "text-right", "targets": [3,4,5,6,7,8,9,10] },
         { className: "dt-nowrap", "targets": [0,1,2] }],
"ajax":{
            url: "<?php echo BASE_URL; ?>load_trader_details.php",
            type: "post"
        }
});

此代码id由文本向右对齐,从3列到10列。但我尝试添加orderable false和searchable as false。但仍然出现了可订购和可搜索的,下面是代码。

dataTable =  jQuery('#delivery-note-transmission-grid').DataTable( {
    processing: true,
    serverSide: true,
    "lengthMenu": [10,25,50,100,500],
    "order": [[ 0, "desc" ]],
    "pageLength": 500,
             "columnDefs": [
             { className: "text-right", "targets": [3,4,5,6,7,8,9,10] },
             { className: "dt-nowrap", "targets": [0,1,2] },
             { orderable: "false", searchable: "false" }],
    "ajax":{
                url: "<?php echo BASE_URL; ?>load_trader_details.php",
                type: "post"
            }
    }); 

How to stop orderable and searchable as false ? Any help would be greatly appreciated