hi,
i have problem with my grid. I am developing an application.
That application have one grid, and the value in grid must not has duplicate value.
For example, one transaction have one transaction number, and have many stuff. And that stuff must not has duplicate value.
Please give me some example. Because i've try to use this code :

select m_stuff
nNumber = recno()
cStuff = f_stuff
locate for cstuff = f_stuff and nNumber <> recno() and m_stuff1.f_code = m_stuff2.f_Code

And i use, table buffer with pesimistic locking at table in both table(m_stuff1 and m_stuff2)