SAP SEL SCREEN F4 HELP ABEXA

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ARTICLE

Selection Screens, Input Help
The example illustrates a self-defined F4 help on selection screens.

ABAP_SOURCE_CODE
ABAP_EXEC

ABAP_DESCRIPTION
In this program, a selection screen with two parameters that are based on column CARRID of database table SPFLI is declared. Whereas for p_carr_1 the input help of the Dictionary is used, a special separate input help is programmed for p_carr_2. Screen 100 is called for this purpose. In the flow logic, the system starts the dialog module value_list at the PBO event. The screen layout for screen 100 is not required, and the system does not call any dialog modules at the PAI event. PROCESS BEFORE OUTPUT.
MODULE value_list.
PROCESS AFTER INPUT.
The dialog module value_list suppresses the display of the screen layout of screen 100 and switches to list display. The list shows values for the parameter p_carr_2 and stores them in the HIDE area. Selecting a line on the value list triggers the event AT LINE-SELECTION, automatically putting the selected value from the HIDE area in the field p_carr_2. If the selection is valid, the system quits the event block for AT LINE-SELECTION directly with the selection screen and fills the input field accordingly.