>>>>Can anyone tell me why the following code used to work (under VFP50) and now, all of a sudden, gives me an error message "Operator/operandi mismatch" ? The underlying field is formatted for datetime and I haven't changed anything else (that I'm aware of) to cause this sudden refusal to work syndrome! Century is set on. Thanks in advance.
>>>>
>>>>IF !EMPTY(THIS.Value) < DATETIME()
>>>> = MESSAGEBOX("You need to enter a VALID date or time",1,"ERROR MESSAGE")
>>>> RETURN .F.
>>>> ELSE
>>>> RETURN .T.
>>>>ENDIF
>>>
>>>It's not related to the field but to This.Value.
>>Does that mean that I need the Character to Date converter as in
>>IF !EMPTY(CTOT(This.value) < DATETIME() ???
>>I really need to validate this data.
>>
>>Thanks - Linda
>
>You need 2 tests:
>
>
>If EMPTY(This.value))
> * Your message here
> return .f.
>endif
>if This.value > datetime()
> * Your message here
> return .f.
>endif
>return .t.
>
>
>Vlad

Thanks All . . I'll bet I did add that !Empty() after. Thanks for the advice and two part valid check code, Vlad.

Linda