displaying Combobox in the DataTable header

msaif

is it possible?
combobox was displayed but when i click the combobox it does not work

msaif

                    <thead>
                        <tr>
                            <th>
                                <select name="__selectbox" class="form-control"><option value="1">Enable</option><option value="2">Disable</option></select>
                            </th>
                        </tr>
                    </thead>