Crystal Reports allows you to add lines to a report to
emphasize important data and create professional-looking reports. Lines can run
horizontally or vertically. For a vertical line to be broken across several
pages, the report section that the line ends in must not be on the same page
that it starts on. For example, if a line runs from a group header to the
corresponding group footer, the line continues on the top of each subsequent
page—just below the page header—until the group footer is encountered.