Filter Header

by Shrikrishna Gupta

HTML

<link rel="stylesheet" href="https://cdn.datatables.net/1.10.11/css/jquery.dataTables.min.css">
<script src="//code.jquery.com/jquery-1.12.0.min.js"></script>
<script src="https://cdn.datatables.net/1.10.11/js/jquery.dataTables.min.js"></script>
<table id="example" class="display" cellspacing="0" width="100%">
        <thead>
            <tr>
                <th class="filterhead">Name</th>
                <th class="filterhead">Position</th>
                <th class="filterhead">Office</th>
                <th class="filterhead">Age</th>
                <th class="filterhead">Start date</th>
                <th class="filterhead">Salary</th>
            </tr>
            <tr>
                <th>Name</th>
                <th>Position</th>
                <th>Office</th>
                <th>Age</th>
                <th>Start date</th>
                <th>Salary</th>
            </tr>            
        </thead>

        <tbody>
            <tr>
                <td>Tiger Nixon</td>
                <td>System Architect</td>
                <td>Edinburgh</td>
                <td>61</td>
                <td>2011/04/25</td>
                <td>$320,800</td>
            </tr>
            <tr>
                <td>Garrett Winters</td>
                <td>Accountant</td>
                <td>Tokyo</td>
                <td>63</td>
                <td>2011/07/25</td>
                <td>$170,750</td>
            </tr>
            <tr>
                <td>Ashton Cox</td>
                <td>Junior Technical Author</td>
                <td>San Francisco</td>
                <td>66</td>
                <td>2009/01/12</td>
                <td>$86,000</td>
            </tr>
            <tr>
                <td>Cedric Kelly</td>
                <td>Senior Javascript Developer</td>
                <td>Edinburgh</td>
                <td>22</td>
                <td>2012/03/29</td>
                <td>$433,060</td>
            </tr>
            <tr>
                <td>Airi...

JavaScript

$(document).ready(function() {
     var table = $('#example').DataTable({
         "bLengthChange": false,
         "iDisplayLength": 15
	   });
 	
     $(".filterhead").not(":eq(2),:eq(3),:eq(4)").each( function ( i ) {
        var select = $('<select><option value=""></option></select>')
            .appendTo( $(this).empty() )
            .on( 'change', function () {
               var term = $(this).val();
                table.column( i ).search(term, false, false ).draw();
            } );
 	      table.column( i ).data().unique().sort().each( function ( d, j ) {
            	select.append( '<option value="'+d+'">'+d+'</option>' )
        } );
		} );
} );