you need to aad drop down while adding row in table
var h = "<select><option>1</option><option>2</option><option>3</option><option>4</option><option>5</option><option>6</option><option>7</option><option>8</option><option>9</option><option>10</option></select>";
$('.datagrid-btable tr:last td:eq(1)').html(h);