Opening subform to a chosen record

[Terri Watson]

I have a form, with a full-page subform. The form is
based on a table with the key identifier BloodID. The
subform is based on a table linked in a many-to-one
relationship with the source table for the form; it's key
identifier is VialID. I'd like to be able to open this
form/subform, with the subform at a chosen record. I can
open the form to a chosen BloodID, but the subform is on
the first VialID for that BloodID.

How can I open it to a chosen VialID, for that BloodID?

Thanks - Terri
(e-mail address removed)

 

[Terri Watson]

I'm sorry, but what do you mean by PK and FK?

Thanks - Terri