--- In IBObjects@yahoogroups.com, "masonwheeler" <masonwheeler@...> wrote:

>
> At runtime (not in the form designer, though I'm not sure if this actually makes a difference) create a TDataSource. Its dataset should be the master table. Assign it to the detail table's MasterSource property.

(Forgot to say, set the master/detail relationship properties on the detail TIBOtable appropriately.)

Mason