Craig Buchanan said:
What is the correct syntax to get reference a control, named txtName,
that is on a subform that has been added to a main form?
You need to get to the control by way of the subform control on the main
form. From outside the main form, you can write
Forms!MainFormName!SubformControlName!txtName
From the main form itself, you can shorten that to
Me!SubformControlName!txtName
In either case, you must use the name of the subform *control*, which
may or may not be the same as the name of the form object that is
displayed in that control.