Adodb

Hi, I am using adodb in the project. I have a master/detail form. Everytime a record is added in a grid it has to calculate the final received qty which is a result of received qty minus rejection qty. this works fine if the record is already available. but if a new record is appended the code written don't work & gives an error message "could not found row". This can be tested with a simply adding a data wizard form in a project. plz any one could help & find out how I'll overcome this problem!