>>
>>I have a field whose oldval() is A1.
>>Let say user change it to A2 then A3 then A4 (multiple time before saving the record)
>>
>>In the valid event, when user key in A3, how do I know (programatically) the last entered value A2, similary, when user inputs A4, I need to know the last entered value A3.
>>
>>Is VFP equiped with something to find out the last entered value?
>
>No but you can build such functionality into your control base class by adding a 'Lastvalue' property and populate it at appropriate time.

Thanks!
Hard to believe VFP does not have this feature... anyway, I trust you :)