AT
SELECTION-SCREEN .
Example ABAP Coding The parameter p_carrid is displayed with a length
of 20 and filled with the label "Lufthansa". The user can select another
airline; in this case, the three-character airline ID is assigned to the
parameter. When assigning the function code onli , which is
assigned to the function Execute in the GUI status of the default
selection screen, the events AT SELECTION-SCREEN and
START-OF-SELECTION are triggered.
PARAMETERS p_carrid TYPE spfli-carrid
AS LISTBOX VISIBLE LENGTH 20
USER-COMMAND onli
DEFAULT 'LH'.
AT SELECTION-SCREEN.
...
START-OF-SELECTION.
...
Documentation extract taken from SAP system, � Copyright SAP AG. All rights reserved