selection - screen

[Former Member]

Hi,

I have two list boxes(drop down fields) on the selection-screen.

Based on the input given in the first field, the input help for the 2nd field has to be changed. (Without pressing any other key)

How it is done.

[Former Member]

Hi,

Use the At Selection screen on field <field name> or

At slection screen on input.

Under this event fetch data for second list box and populate it.

(press F1 on At events, to get exact syntax or go to tcode ABAPDOCU )

Thanks & Regards,

Navneeth K.

[Former Member]

Hi,

The addition USER-COMMAND can be used to assign a function code fcode to the dropdown list box.

When the user selects a line of the list box on the selection screen, the runtime environment triggers the event AT SELECTION-SCREEN and transfers the function code fcode to the component ucomm of the interface work area sscrfields. If a function code used in the GUI status of the selection screen is specified for fcode, the selection screen processing is affected accordingly.

Without the addition USER-COMMAND, selecting a line in the dropdown list box does not lead to the event AT SELECTION-SCREEN.

see the below example:

PARAMETERS p_carrid TYPE spfli-carrid

AS LISTBOX VISIBLE LENGTH 20

USER-COMMAND onli

DEFAULT 'LH'.

AT SELECTION-SCREEN.

...

Regards

Shiva

[former_member585060]

Hi,

Do the coding in AT SELECTION-SCREEN. event, as it triggers when you press enter key after input.

PARAMETRES : p_1(5) AS LISTBOX,

p_2(5) AS LISTBOX.

AT SELECTION-SCREEN.

IF p_1 EQ 'ABC'.

p_2 = 'XYZ'.

ENDIF.

Regards

Bala Krishna

[Former Member]

Hi Charan,

Here is the sample :

PARAMETERS : p_carrid TYPE spfli-carrid

AS LISTBOX VISIBLE LENGTH 20 USER-COMMAND onli .

PARAMETERS : p_connid TYPE spfli-connid

AS LISTBOX VISIBLE LENGTH 20 .

data : begin of itab occurs 0,

connid type spfli-connid,

end of itab.

data : i_dynp type table of DYNPREAD with header line.

AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_connid.

i_dynp-fieldname = 'P_CARRID'.

APPEND i_dynp.

CLEAR i_dynp.

CALL FUNCTION 'DYNP_VALUES_READ'

EXPORTING

dyname = sy-repid

dynumb = sy-dynnr

TABLES

dynpfields = i_dynp.

READ TABLE i_dynp WITH KEY fieldname = 'P_CARRID'.

IF sy-subrc IS INITIAL.

MOVE : i_dynp-fieldvalue TO p_carrid.

ENDIF.

SELECT connid

FROM spfli

INTO TABLE itab

WHERE carrid EQ p_carrid.

CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'

EXPORTING

retfield = 'CONNID'

dynpprog = sy-repid

dynpnr = sy-dynnr

dynprofield = 'P_CONNID'

value_org = 'S'

TABLES

value_tab = itab.

Try it out, It will work.