>>>Hello:
>>>
>>>I'm trying to force users not to enter dates before 1900 into a text box.
>>>
>>>I have the following code in the valid event but it won't allow
>>>me to enter any dates now. Dates entered, i,.e. 1965/09/08 give me invalid input.
>>>
>>>Local llpastdate
>>>llpastdate = this.value < {1900/01/01}
>>>
>>>
>>>
>>>If llpastdate
>>>=messagebox("You cannot enter a century befpre 1900")
>>>Endif
>>>return llpastdate
>>Hi Sheena,
>>First prefer lostfocus for validation (valid is more problematic).
>>Dateformat might not be in YYYYMMDD thus returning an emptydate better use strictdate formats and expressions as {^1900/01/01}.
>>Return dDate in valid is not a valid option. Return num or logical expression.
>>If you need to check only dates are not before 1900 then use year() to check.
>>

* lostfocus
>>if year(this.value) < 1900
>>* Is empty(date) allowable ? - If so add "and !empty(this.value)"
>> nodefault   && Prevent focus to change
>> messagebox("You cannot enter a century before 1900")
>>endif

>
>Hi Cetin,
>
>I'll have to disagree about putting this in LostFocus. Under some circumstances, it is possible for this to be bypassed. For example, assume that there's a command button that closes the form. If the user clicks on it and there's an invalid entry in the text box, the form closes. However, if this code is in the Valid, the user cannot click the command button.

Yes, not a commandbutton but a toolbar might let it. OTOH valid is easily defeated when it's on a grid too. I prefer lostfocus because you can call other things easily ie: setfocus().
Cetin