Geoff,
I am somewhat relieved to know I had misunderstood. ;-)

> In a bufferred dataset (TIB_Query) there are actually two independant
> TIB_Row instances (actually there can be more than that but lets keep
> this simple).

<SNIP useful explaination>

> Because BufferFields is a separate TIB_Row and has its own column
> instances, you must separately assign any event handlers to the
> BufferFields columns - if you want those handlers used in things like
> TIB_Grid.

Do you (and Jason) think that a property setting to automatically
propagate assignments from Fields to BufferFields (or propagate by
default those that make much sense, like OnGetText/OnSetText) could be a
thing to consider?
Ciao
--
____
_/\/ando