先录入c_year,c_datetime的值,最后录入c_no,在dw_2.itemchange事件
if dwo.name = 'c_no' then
ll_find = dw_1.find("c_no = '" + data + "'",1,dw_1.rowcount())
if ll_find > 0 then
dw_1.setitem(ll_find,'c_year',dw_2.getitemstring(row,'c_year'))
dw_1.setitem(ll_find,'c_datetime',dw_2.getitemstring(row,'c_datetime'))
end if
end if
dw_2.reset()