GroupJournalLineList, CompanyJournalLineList

Journals consist of lines, so BI# needs a way to access these lines. You can use the types GroupJournalLineList and CompanyJournalLineList for this purpose. Both can be used in foreach loops:

void ProcessGroupJournalLines(GroupJournal journal)
{
     GroupJournalLineList lines = GetGroupJournalLines(journal);
     foreach (GroupJournalLine line in lines)
     {
          // Do something with line.
     }
}