there isn't an
option to set the ControlSource of each combo box control to the appropriate
field in the table.
just open the form in design view. click on a combo box control to select
it. in the Properties box, look on the All tab for the ControlSource
property. set the value to the appropriate field in the form's underlying
table, from the droplist.
As I am using two droplist from two different tables wouldn't I need to
create a control to update the third table with the selections from the
droplists?
no. bind each combo box control to the appropriate field in the form's
underlying table, as i said. set the *RowSource* of each combo box to the
table that contains the field(s) you want to see in the droplist. suggest
you read up on ComboBox controls in Help, including the topics for their
various properties such as RowSource, ColumnCount, BoundColumn,
ColumnWidths, for a better understanding of how they work.
hth