What about logical fields?
>To All,
>
>I created an app that uses some free tables created from Outlook export and other free tables I created myself. Outlook accepts null values and I have never used them or wanted to use them in FoxPro. I'm real, real sure I've cleaned all the nulls out of the VFP tables created originally from Outlook with a "cleaner" program and verifyed by browsing the "cleaned" tables after. There are no nulls to be seen. The "cleaner" program opens the file, scans records and looks at each field. Here's the logic,
>
>scan
> for i=1 to fcount()
> if isnull(evaluate(field(i)))
> n=n+1
> this.parent.count.value=n
> this.parent.count.refresh
> do case
> case type(field(i))='C'
> replace (field(i)) with ''
> case type(field(i))='M'
> replace (field(i)) with ''
> case type(field(i))='N'
> replace (field(i)) with 0
> case type(field(i))='D'
> replace (field(i)) with ctod(' / / ')
> endcase
> endif
> endfor
>endscan
>
>But, null errors occasionally pop up during my app programs and I can't figure out why. The error is
cannot accept null values. So, nulls are somehow creeping in from somewhere.
>
>Any suggestions?
>
>Thanks, Allen
