Handle text using list box in dialog program

Question

hi,
  I am  working  on  dialog program  , Created  two fileds , one is list  box type  I/O field and another is  i/O  field  which displays  text  based  on  value  selected in list box.
Please  provide  any  inf  how  to Handle  text  using list box value in dialog program.
thanks

Answer 1

Hi,
<li>Check the screen to know how to set I/O field to set as listbox.[ dropdown box picture|http://2.bp.blogspot.com/_O5f8iAlgdNQ/Sm7RBrqfjcI/AAAAAAAAFaU/RateViiVqrU/s1600-h/drop_down-754481.JPG]
<li>in the above screen we need to set FctCode  for the dropdown box field so that when you select value from the dropdown box PAI event is triggered.
<li>screen flow logic like below
PROCESS BEFORE OUTPUT.
MODULE values_into_dropdown.
FIELD g_bukrs.
FIELD g_text.
PROCESS AFTER INPUT.
FIELD g_bukrs.
FIELD g_text MODULE get_bukrs_txt.
<li>Logic to fill Dropdown field with values.
  PROGRAM  sapmztest_dropdown.
DATA: g_bukrs TYPE t001-bukrs.
*&      Module  VALUES_INTO_DROPDOWN  OUTPUT
MODULE values_into_dropdown OUTPUT.
TYPE-POOLS:vrm.
DATA:
       field     TYPE  vrm_id,
       it_values TYPE  vrm_values,
       wa_values LIKE LINE OF it_values.
DATA: t001 TYPE t001 OCCURS 0 WITH HEADER LINE.
IF it_values[] Is INITIAL.
   SELECT * FROM t001 INTO TABLE t001 UP TO 10 ROWS.
   LOOP AT t001.
     wa_values-key  = t001-bukrs.
     wa_values-text = t001-butxt.
     APPEND wa_values TO it_values.
     CLEAR  wa_values.
   ENDLOOP.
ENDIF.
field = 'G_BUKRS'.
CALL FUNCTION 'VRM_SET_VALUES'
   EXPORTING
     ID     = FIELD
     values = it_values.
ENDMODULE.                 " VALUES_INTO_DROPDOWN  OUTPUT
*&      Module  get_bukrs_txt  INPUT
MODULE get_bukrs_txt INPUT.
read table it_t100 into wa_t100 with key bukrs = g_bukrs.
g_text = t001-butxt.
ENDMODULE.                 " VALUES_INTO_DROPDOWN  INPUT
I hope that it helps you.
Thanks
Venkat.O