GridView Up and Down Navigation using jQuery

Question

I am trying to achieve GridView Up and Down keyboard navigation feature, using jQuery. I have written code for the same, but with a bug that it is working only once

Answer 1

you can replace your line with my lines only for

(e.keycode==40)            $(this).closest('tr').next().find('td:eq('+$(this).closest('td').index()+')').find('input').focus();