TOP-OF-PAGE
Short Reference
ABAP Syntax TOP-OF-PAGE [DURING LINE-SELECTION].
ABAP_ADDITION:
... DURING LINE-SELECTION
What does it do? This statement defines an event block whose event is
triggered by the ABAP runtime
environment during the creation of a list. This occurs when a new
page is started - that is, immediately before the first line in a new
page is to be output. All list outputs that take place in the event
block are placed below the standard page header of the list. You cannot
output more lines than are available in the page within the event block.
The NEW-PAGE statement is ignored within
this event block.
The entire output written to the list in the event block belongs to
the page header of the current list page.
The top page header cannot be moved when you scroll vertically in a list
displayed on the screen.
For each TOP-OF-PAGE event, the placeholders " 1" - "
9" are replaced with the contents of system fields sy-tvar0 -
sy-tvar9 in the standard heading and the column headings of the
standard page header during creation of a basic list. You can assign
values to these system fields in the program.
ABAP_ADDITION ... DURING LINE-SELECTION
What does it do? If you do not use an addition, an event block is
triggered for event TOP-OF-PAGE during the creation of a basic
list. If you use the addition DURING LINE-SELECTION , an event
block is triggered for the corresponding events during the creation of
details lists. You have to use system fields like sy-lsind to
distinguish between the individual details lists.
Documentation extract taken from SAP system, � Copyright SAP AG. All rights reserved