i recently upgraded to latest version 5.2.1 and now following code is not working.
var $grid = jQuery(“#jqGrid”);
$grid.jqGrid(‘showCol’,’expanddetails’);
$grid.jqGrid(‘hideCol’,’cb’);

right after i create grid in load complete i do
$grid.jqGrid(‘hideCol’,’cb’); and its working.. and checkbox column is hidden.
but on click of button(external) i am trying to show/hide columns and its not working..

same code was working before upgrading
what am i doing wrong ?