Answers for "hide jquery datatable column based on value in dropdownlist"

hide search in datatable

Three ways of doing are:

For DataTables >=1.10, use:
	$('table').dataTable({searching: false, paging: false, info: false});

For DataTables <1.10, use:
	$('table').dataTable({bFilter: false, bInfo: false});

or using pure CSS:
	.dataTables_filter, .dataTables_info { display: none; }

hide datatable columns using datatable predifine function

$(document).ready(function() {
    $('#example').DataTable( {
        "columnDefs": [ 
            {
                "targets": [ 2 ],
                "visible": false,
                "searchable": false
            },
            {
                "targets": [ 3 ],
                "visible": false
            }
        ]
    } );
} );