Release 10.1A: OpenEdge Development:
Progress 4GL Reference

BUFFER-LINES attribute

The number of lines a user can enter into the editor.

Data type: INTEGER

Access: Readable/Writeable

Applies to: EDITOR widget

You can set this attribute only before the editor widget is realized. The value must be an integer expression that is equal to or greater than the value specified by the HEIGHT-CHARS or INNER-LINES attributes. If equal, vertical scrolling is disabled.

By default, Progress does not limit the number of enterable lines (although system limits may apply).