how to select checkbox and textbox in each table row

how to select checkbox and textbox in each table row

I have a table to which I am dynamically adding rows to.  When a user clicks a link I need to select a checkbox and a textbox in each row to do some validation.  I have this but it's not working and I'm not quite sure what I need to change to make it work.  Thanks.

$("#tblWorksheet tr[name^='tw_cjid_']").each(
function(){
var chkbx = $(this).("input[name^='chk_approve_']");
var txtbx = $(this).("input[name^='txt_comment_']");
}
);