Logic Attachment to Joined Sections
If you need to include logic on joined sections that should be processed every time the section is processed, attach the logic to the Refresh Section event. When joined sections are processed, the system initializes the Initialize Section event the first time the parent/child section is processed. The system then initializes the Refresh Section event for all subsequent times the parent/child section is processed. Therefore, if you attach logic to the Initialize Section event, the logic is processed only once. If you attach logic to the Refresh Section event, it is processed each time the section is processed.