I am creating a Call log program, in the call log form i have 2 fields which are date log and time log which generated from the system. How to lock the date/time in order to prevent the date/time overwrite the previous one when the particular call log form opened at second time. What i mean that i only want the particular call log generate the date/time once only which is the first time the call log created.
Pls help.
Pls help.