And this is why I stick with what I said before......if you have an object that exposes attributes, changing the attribute fires Assign which can REPLACE and other stuff.

>>But I dont quite follow what that last part... what's the gotcha here?
>
>If you do a replace on a field, then refresh the form, there will be no way of determining if the value property changed (Programmatic, Interactive, nor the Value_Assign will fire). Thats the gotcha.