Clear Input Field

[Former Member]

I need to clear the input field on the screen, if the input by the user is invalid. This is a generic code and need to be used in many screens. I would not really like to hard code the field names in the code to clear the input field (in the PAI event of the screen). Is there a way to use SCREEN-NAME variable to clear the input field dynamically whose name is stored in SCREEN-NAME variable?

Any help would be highly regarded !!!!

[Former Member]

Hi Nikhil,

see this report

select second radiobutton and press on enter ,

enter some values in the PO number and press enter it will show you the error message and it wil clear the values also

REPORT ZNNR_REPORT NO STANDARD PAGE HEADING MESSAGE-ID ZNNR LINE-SIZE 100 LINE-COUNT 65(4).

******DATA DECLARATIONS**********

DATA : BEGIN OF IT_PLANT OCCURS 0,

MATNR LIKE MARA-MATNR,

WERKS LIKE MARC-WERKS,

PSTAT LIKE MARC-PSTAT,

EKGRP LIKE MARC-EKGRP,

END OF IT_PLANT.

DATA : BEGIN OF IT_PONO OCCURS 0,

EBELN LIKE EKKO-EBELN,

EBELP LIKE EKPO-EBELP,

MATNR LIKE EKPO-MATNR,

WERKS LIKE EKPO-WERKS,

LGORT LIKE EKPO-LGORT,

END OF IT_PONO.

TABLES EKKO.

********END OF DATA DECLARATIONS*********

********SELECTION SCREEN DESIGN ***********

SELECTION-SCREEN BEGIN OF BLOCK B1 WITH FRAME TITLE TEXT-001.

PARAMETER : P_WERKS LIKE MARC-WERKS MODIF ID S1.

SELECT-OPTIONS : S_EBELN FOR EKKO-EBELN NO INTERVALS MODIF ID S2.

SELECTION-SCREEN END OF BLOCK B1.

SELECTION-SCREEN BEGIN OF BLOCK B2 WITH FRAME TITLE TEXT-004.

SELECTION-SCREEN BEGIN OF LINE.

PARAMETERS : R1 RADIOBUTTON GROUP G1 DEFAULT 'X'.

SELECTION-SCREEN COMMENT 5(20) TEXT-002 FOR FIELD R1.

SELECTION-SCREEN END OF LINE.

SELECTION-SCREEN BEGIN OF LINE.

PARAMETERS : R2 RADIOBUTTON GROUP G1.

SELECTION-SCREEN COMMENT 5(20) TEXT-003 FOR FIELD R2.

SELECTION-SCREEN END OF LINE.

SELECTION-SCREEN END OF BLOCK B2.

******END OF SELECTION SCREEN DESIGN****************

*********INITIALIZATION OF SELECTION SCREEN ELEMENTS.*****

INITIALIZATION.

P_WERKS = '1000'.

S_EBELN-LOW = '4500016926'.

S_EBELN-OPTION = 'EQ'.

S_EBELN-SIGN = 'I'.

APPEND S_EBELN.

CLEAR S_EBELN.

************END OF INITIALIZATION***********************

***********SCREEN MODIFICATIONS*******************

AT SELECTION-SCREEN OUTPUT.

LOOP AT SCREEN.

IF R1 EQ 'X' AND SCREEN-GROUP1 EQ 'S2'.

SCREEN-INPUT = 0.

MODIFY SCREEN.

ENDIF.

IF R2 EQ 'X' AND SCREEN-GROUP1 EQ 'S1'.

SCREEN-INPUT = 0.

MODIFY SCREEN.

ENDIF.

ENDLOOP.

********END OF SCREEN MODIFICATIONS*****************

***************SCREEN VALIDATIONS *****************

at selection-screen.

SELECT SINGLE *

FROM EKKO

INTO EKKO

WHERE EBELN IN S_EBELN.

IF SY-SUBRC 0.

SET CURSOR FIELD 'S_EBELN-LOW'.

MESSAGE E999 WITH TEXT-005.

clear S_ebeln-low.

ENDIF.

********end of screen validation*****************

START-OF-SELECTION.

*set pf-status '100'.

IF R1 EQ 'X'.

SELECT MATNR

WERKS

PSTAT

EKGRP

FROM MARC

INTO TABLE IT_PLANT

WHERE WERKS = P_WERKS.

LOOP AT IT_PLANT.

WRITE : SY-VLINE , 2 IT_PLANT-MATNR COLOR COL_KEY,

21 SY-VLINE , 22 IT_PLANT-WERKS COLOR COL_KEY,

27 SY-VLINE ,28 IT_PLANT-PSTAT COLOR COL_NORMAL,

43 SY-VLINE ,44 IT_PLANT-EKGRP COLOR COL_NORMAL.

ENDLOOP.

ENDIF.

IF R2 EQ 'X'.

SELECT EBELN EBELP MATNR WERKS LGORT

FROM EKPO

INTO TABLE IT_PONO

WHERE EBELN IN S_EBELN.

LOOP AT IT_PONO.

WRITE : SY-VLINE , 2 IT_PONO-EBELN COLOR COL_KEY,

12 SY-VLINE , 13 IT_PONO-EBELP COLOR COL_KEY,

18 SY-VLINE , 19 IT_PONO-MATNR COLOR COL_NORMAL,

37 SY-VLINE , 38 IT_PONO-WERKS COLOR COL_NORMAL,

44 SY-VLINE , 45 IT_PONO-LGORT COLOR COL_NORMAL, 49 SY-VLINE..

ENDLOOP.

ENDIF.

TOP-OF-PAGE.

IF R1 EQ 'X'.

*ULINE AT /1(48).

WRITE : SY-VLINE ,2 'MATERIAL NUMBER',

21 SY-VLINE , 22 'PLANT',

27 SY-VLINE , 28 'STATUS',

43 SY-VLINE , 44 'GRUP', 48 SY-VLINE.

ULINE AT /1(48).

ENDIF.

IF R2 EQ 'X'.

WRITE : SY-VLINE , 2 'PO NUMBER',

12 SY-VLINE, 13 'ITEM',

18 SY-VLINE,19 'MATERIAL NUMBER',

37 SY-VLINE, 38 'PLANT',

44 SY-VLINE, 45 'GRUP',

49 SY-VLINE.

ULINE AT /1(50).

ENDIF.

END-OF-PAGE.

ULINE AT /1(50).

WRITE :/10 'PAGE NUMBER', SY-PAGNO.

kindly reward if helpful.

cheers,

Hema.

[Former Member]

Hai,

I am not sure but give SCREEN-NAME variable = ' '

(means it's a space) in coding.

regards.

sowjanya.b.

[Former Member]

Thanks Guys!!!!

I have used the following approach to accomplish this task:

FIELD-SYMBOLS: <screen_field>.

.....

.....

LOOP AT SCREEN.

ASSIGN TABLE FIELD (screen-name) TO <screen_field>.

......

......

CLEAR <screen_field>.

ENDLOOP.