>Hi all,
>
>I just had a frustrating hour or more.
>
>A form with table buffering for specific table (of a .DBC), MULTILOCKS ON, etc...
>
>An APPEND BLANK, set the PK field, then SETFLDSTATE on PK field so it looks UNCHANGED.
>In the Valid() of my subclassed TextBox I was comparing This.Value to the field's OLDVAL. Because it is a subclass the field can be anything so I deconstruct the ControlSource to construct the OLDVAL statement and I include the alias as a parameter.
>
>When the input field remained untouched (just tabbed through them) the compare never returned TRUE.
>
>I ultimately found that OLDVAL was returning .NULL. even though the field does NOT allow NULL (none of the fields in the database do).
>
>Is this normal? Checking OLDVAL in both VFP Help and Hacker's doesn't mention this.

AFAIK SETFLDSTATE() does not work properly when used to make a row look "unchanged". HackFox3 says as much and I couldn't get it to work the way I wanted to in VFP5 either (don't know offhand if it was ever changed in VFP6).

I have no idea if this is the root cause of what you're seeing.