>James,
>
>I'm actually looking for advice on where I would put the replace for the price field in my example. If I just put it in the Valid or LostFocus, doesn't this violate the 3 tier model?
>
>TIA
>

No. In the Mere Mortals implentation of the Windows DNA (three tier model), the UI tier is still just VFP data (emissary). When you update the data, tier one sends an XML Updategram to the middle tier (the excutant), and then the backend is updated.