At times it is convenient to have a line number for each item on a list. The P# (Page number) function works well on lists, but not on Subforms since it returns the P# of the Host form.
To create a line number for each item on a Subform, first determine how the Subform items should be indexed. In the following example, Call Date should be indexed:
Create the Abacus as shown below.
This Abacus will count all the records which appear on the Subform and are less than or equal to the current record. Place this Abacus in a Data rectangle on the Subform.
The subform should now look like this:
