Go to record on subform using combo box on main form

[JMCS]

My main form relates to projects; the subform contains a variable amount of
sub-projects.

I would like users to be able to select a sub-project from a combo box in
the main form, and then go to that particular sub-project, using a "Find"
technique. I've got as far as navigating to the project containing
sub-project, and to show the selected project in the sub-form, but am unable
to come up with the code to navigate to the sub-project.

JMCS

 

[JMCS]

I need to clarify one thing - I am able to show the sub-project number in a
text box in the subform, but am unable to navigate to the actual record.