topic List Boxes on a Selection Screen in Application Development and Automation Discussions

List Boxes on a Selection Screen

Former Member — Tue, 07 Feb 2006 12:35:55 GMT

Hi,

I have a list box on the selection screen. In the At Selection Screen Output, I filled the List box with 12 Values.

Now, I want to default the List box value with one of those values.

So, after the CALL FM 'VRM_SET_VALUES', I say p_field = 'Value'.

But this Value is being shown in the Drop down list twice.

I could not understand the mistake.

Please suggest.

Thanks,

Suryakiran D.

Re: List Boxes on a Selection Screen

Former Member — Tue, 07 Feb 2006 12:42:00 GMT

Hi suryakiran,

1. Its happening bcos

u must be giving NAME

2. give p_field = Key

3. ie. 1 for Jan

2 for Feb etc

*----

in the FM VRM_SET_VALUES

we are filling the parameter VALUES

VALUES-key

VALUES-TEXT

*----

so, give KEY, (and not text)

after calling this FM.

REPORT abc.

TYPE-POOLS : vrm.

DATA : v TYPE vrm_values.

DATA : vw LIKE LINE OF v.

PARAMETERS : a(10) TYPE c AS LISTBOX VISIBLE LENGTH 10.

INITIALIZATION.

vw-key = '1'.

vw-text = 'Jan'.

APPEND vw TO v.

CALL FUNCTION 'VRM_SET_VALUES'

EXPORTING

id = 'A'

values = v

EXCEPTIONS

id_illegal_name = 1

OTHERS = 2.

a = '1'.

*----

Problem

a = 'Jan'.

regards,

amit m.

Message was edited by: Amit Mittal

Re: List Boxes on a Selection Screen

athavanraja — Tue, 07 Feb 2006 12:43:43 GMT

in the initialization event just pass the value to be defaulted to the parameter .

parameters: p_obj(2) as listbox visible length 50 .

initialization .

p_obj = 'G' . " the key of the entry

Regards

Raja

Re: List Boxes on a Selection Screen

Former Member — Tue, 07 Feb 2006 12:46:56 GMT

the problem is you have added the values in the list box using the VRM_set_values so the list box contains all the values even the value which your assign currently. that's why it is displaying twice.

regards.

Re: List Boxes on a Selection Screen

Former Member — Tue, 07 Feb 2006 12:47:21 GMT

hi Surya,

checkout the example code..,

PROGRAM zcmtest01.

TYPE-POOLS: vrm.

DATA: name TYPE vrm_id,

list TYPE vrm_values,

value LIKE LINE OF list.

PARAMETERS: ps_parm(10) AS LISTBOX VISIBLE LENGTH 10.

AT SELECTION-SCREEN OUTPUT.

name = 'PS_PARM'.

value-key = '1'.

value-text = 'Line 1'.

APPEND value TO list.

value-key = '2'.

value-text = 'Line 2'.

APPEND value TO list.

CALL FUNCTION 'VRM_SET_VALUES'

EXPORTING id = name

values = list.

START-OF-SELECTION.

WRITE: / 'Parameter:', ps_parm.

regards,

Vinoth

Re: List Boxes on a Selection Screen

Former Member — Tue, 07 Feb 2006 12:52:20 GMT

check this code..

copy paste it and see...

REPORT  ZTEST_CODE_VRM.

TYPE-POOLS: VRM.

TYPES: NAME TYPE VRM_VALUE-TEXT.
DATA: V_VBELN LIKE VBAK-VBELN.
DATA: IT_VALUES TYPE STANDARD TABLE OF VRM_VALUE.
DATA: WA TYPE VRM_VALUE.
TABLES: KNA1.

SELECT-OPTIONS: S_VBELN FOR V_VBELN.
PARAMETERS: P_KUNNR AS CHECKBOX USER-COMMAND ABC.
PARAMETERS: P_CHK1 AS CHECKBOX USER-COMMAND ABC.
PARAMETERS: P_KUNNR1 TYPE NAME AS LISTBOX VISIBLE LENGTH 30.

INITIALIZATION.
  S_VBELN-LOW = '123'.
  APPEND S_VBELN.

  WA-KEY = '1'.
  WA-TEXT = 'One'.
  APPEND WA TO IT_VALUES.
  CLEAR WA.

  WA-KEY = '2'.
  WA-TEXT = 'Two'.
  APPEND WA TO IT_VALUES.
  CLEAR WA.
  READ TABLE IT_VALUES INTO WA INDEX 1.
  P_KUNNR1 = WA-KEY.
  CALL FUNCTION 'VRM_SET_VALUES'
    EXPORTING
      ID              = 'P_KUNNR1'
      VALUES          = IT_VALUES
    EXCEPTIONS
      ID_ILLEGAL_NAME = 1
      OTHERS          = 2.
  IF SY-SUBRC <> 0.
    MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
            WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.



AT SELECTION-SCREEN.
  CLEAR S_VBELN.
  REFRESH S_VBELN.
  S_VBELN-LOW = '456'.
  APPEND S_VBELN.


AT SELECTION-SCREEN ON P_KUNNR.
* This event should fire only only for parameters not for select options
  P_KUNNR = 'X'.

*
AT SELECTION-SCREEN OUTPUT.

  IF P_KUNNR = 'X'.
    P_KUNNR = ' '.
  ENDIF.
  IF P_CHK1 = ' '.
    P_CHK1 = 'X'.
  ELSE.
    P_CHK1 = ' '.
  ENDIF.

regards

vijay

Re: List Boxes on a Selection Screen

Former Member — Wed, 08 Feb 2006 05:09:51 GMT

At the time of populating the values, populate all the values except the one you want to set as default.

Then Call the FM with p_field = 'value', where 'value' is your default string that is displayed.

Regards,

Sunil.