F4搜索帮助 带回多个值

昨天群里有人问，就自己试了一下，POV执行在走PAI之前，所以空表行的时候TABLE里是没有数据的，所以一开始想用MIDOFY的想法看来不完善，可以再空表时做个APPEND。

后来又换了个想法，直接更新屏幕值。

测试的程序，比较乱

MODULE POV_MATNR INPUT.
  DATA:T_TAB TYPE TABLE OF MAKT.
  DATA:R_TAB TYPE TABLE OF DDSHRETVAL WITH HEADER LINE.
  DATA:P_TAB TYPE TABLE OF DYNPREAD.
  DATA:S_TAB TYPE DYNPREAD.
  DATA:LINE TYPE I.
  DATA:LV_FIELD() TYPE C.

  GET CURSOR FIELD  LV_FIELD LINE LINE.

  CALL FUNCTION 'DYNP_GET_STEPL'
    IMPORTING
      POVSTEPL = LINE.

  SELECT * INTO CORRESPONDING FIELDS OF TABLE T_TAB FROM MAKT.

  CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
    EXPORTING
*     DDIC_STRUCTURE  = ' '
      RETFIELD        = 'MATNR'
*     PVALKEY         = ' '
      DYNPPROG        = SY-REPID
      DYNPNR          = SY-DYNNR
      DYNPROFIELD     = 'GW_ZMMS014-MATNR'
*     STEPL           = 0
*     WINDOW_TITLE    =
*     VALUE           = ' '
      VALUE_ORG       = 'S'
*     MULTIPLE_CHOICE = ' '
*     DISPLAY         = ' '
*     CALLBACK_PROGRAM       = ' '
*     CALLBACK_FORM   = ' '
*     CALLBACK_METHOD =
*     MARK_TAB        =
* IMPORTING
*     USER_RESET      =
    TABLES
      VALUE_TAB       = T_TAB[]
*     FIELD_TAB       =
      RETURN_TAB      = R_TAB[]
*     DYNPFLD_MAPPING =
    EXCEPTIONS
      PARAMETER_ERROR =
      NO_VALUES_FOUND = .
  READ TABLE R_TAB INDEX .
  S_TAB-FIELDNAME = 'GW_ZMMS014-MATNR'.
  S_TAB-STEPL = LINE.
  S_TAB-FIELDVALUE = R_TAB-FIELDVAL."ls_return_tab-fieldval.
  APPEND S_TAB TO P_TAB..
  S_TAB-FIELDNAME = 'GW_ZMMS014-MAKTX'.
  S_TAB-STEPL = LINE.
  S_TAB-FIELDVALUE = ''."ls_return_tab-fieldval.
  APPEND S_TAB TO P_TAB..

  CALL FUNCTION 'DYNP_VALUES_UPDATE'
    EXPORTING
      DYNAME               = SY-REPID
      DYNUMB               = SY-DYNNR
    TABLES
      DYNPFIELDS           = P_TAB
    EXCEPTIONS
      INVALID_ABAPWORKAREA =
      INVALID_DYNPROFIELD  =
      INVALID_DYNPRONAME   =
      INVALID_DYNPRONUMMER =
      INVALID_REQUEST      =
      NO_FIELDDESCRIPTION  =
      UNDEFIND_ERROR       = .
ENDMODULE.