title: Refresh DataTable after search
body: <p>I have a table with several columns loaded from the DB, I applied a filter to be able to load only the wo's closed, but when I apply to look for the wo's open nothing appears. </p>
  
  <p>Maybe I have to do a reload in the datatable?</p>
  
  <pre class="lang-js prettyprint-override"><code>$("#close").click(function(){
    var table = $('#todolist').DataTable();
    table.columns([2,3]).search("W.O.", "Close").draw();
  });
  
  $("#open").click(function(){
    var table = $('#todolist').DataTable();
    table.columns([2,3]).search("W.O.", "open").draw();
  });
  </code></pre>
  
  <p>I tried to use <code>$('#pedidos').DataTable().ajax.reload();</code> but it didn't work.</p>