Release 10.1A: OpenEdge Development:
Programming Interfaces

Control blocks and output statements

Compiling a report usually involves a straightforward process of moving through a set of table records, calculating data, and outputting results. A control block best handles the report-generating process. Most reports use the FOR EACH block because of its record-reading properties. Here is an example:

FOR EACH Customer FIELDS (Name) WITH FRAME Frame1: IF BALANCE > 0 THEN Bal-due = YES. ELSE Bal-due = NO. DISPLAY Name Bal-due. END.

The default frame of an iterating control block is a down frame.

The DISPLAY statement is Progress’s main programming statement for output. DISPLAY can output to printers and media as well as the screen. Later, you’ll learn about another output statement and how to direct output.