I tried but reload is triggered only after alert is shown ex:
$("#gs_title").val('test');
$('#mygrid').trigger('reloadGrid');
nothing.
$("#gs_title").val('test');
alert('loaded');
$('#mygrid').trigger('reloadGrid');
works (data reloaded). I can't figure why, but using $("#mygrid")[0].triggerToolbar() does not works too.