TOPIC:

I stared this app is first time i trying to use dbgrid and dataset update directly  i allways use form update datas of table, but thsi tiem i think is only two fields could be more simple to control de dbgrid update the datas but i need validate if values on colums not exist on table....I attached app on let dbgrid is where i wanna to update and validate information from dbgrid, i tried differents events i don't work for me some help are welcome or some example...Thanks