>Hi,
>
>

>IF VARTYPE(THIS.txtName)="O"
>

>
>I'd be inclined to add '.AND. !ISNULL(This.txtName)' to that.
>
>Regards,
>Viv

Viv,

I wouldn't. VarType() returns 'X' if the arg is null

I got hit by that a couple of days ago.

It only acts as type() if you add a second parameter: VarType(VariableName, TRUE)