TC(TableControl)中F4的问题

 

 

近日有兄弟问我TC中F4的问题，因为忙，一直没有搞，今天清闲些，研究了一下，程序如下：

 

REPORT z_barry_tc_f4 .

CONTROLS: tc01 TYPE TABLEVIEW USING SCREEN 0100.

TYPES: BEGIN OF ty_itab,
         carrid TYPE spfli-carrid,
         connid TYPE spfli-connid,
       END OF ty_itab.
DATA: itab TYPE TABLE OF ty_itab ,
      wa TYPE ty_itab .
DATA: progname TYPE sy-repid,
      dynnum   TYPE sy-dynnr,
      dynpro_values TYPE TABLE OF dynpread,
      field_value LIKE LINE OF dynpro_values .
DATA: ok_code   LIKE sy-ucomm.

START-OF-SELECTION.
  wa-carrid = 'A01'.
  wa-connid = '0001'.
  APPEND wa TO itab.

  CALL SCREEN 100.
*---------------------------------------------------------------------*
*       MODULE TC01_change_tc_attr OUTPUT                             *
*---------------------------------------------------------------------*
MODULE tc01_change_tc_attr OUTPUT.
  DESCRIBE TABLE itab LINES tc01-lines.
ENDMODULE.

*---------------------------------------------------------------------*
*       MODULE TC01_modify INPUT                                      *
*---------------------------------------------------------------------*
MODULE tc01_modify INPUT.
  READ TABLE itab INTO wa INDEX tc01-current_line
                          TRANSPORTING NO FIELDS .
  IF sy-subrc = 0 .
    MODIFY itab FROM wa INDEX tc01-current_line.
  ELSE.
    INSERT wa INTO itab INDEX tc01-current_line.
  ENDIF.
ENDMODULE.
*&---------------------------------------------------------------------*
*&      Module  status_0100  OUTPUT
*&---------------------------------------------------------------------*
MODULE status_0100 OUTPUT.
  SET PF-STATUS 'MAIN100'.
  progname = sy-repid.
  dynnum   = sy-dynnr.
ENDMODULE.                 " status_0100  OUTPUT

*&---------------------------------------------------------------------*
*&      Module  USER_COMMAND_0100  INPUT
*&---------------------------------------------------------------------*
MODULE user_command_0100 INPUT.
  CASE ok_code.
    WHEN 'BACK'.
      LEAVE PROGRAM.
  ENDCASE.
ENDMODULE.                 " USER_COMMAND_0100  INPUT
*&---------------------------------------------------------------------*
*&      Module  showf4  INPUT
*&---------------------------------------------------------------------*
MODULE showf4 INPUT.
  DATA: l_selline LIKE sy-stepl,
        d_values TYPE TABLE OF dynpread,
        f_value LIKE LINE OF dynpro_values .
  DATA: tmpitab LIKE itab.

  CLEAR tmpitab.
  GET CURSOR LINE l_selline.

  CALL FUNCTION 'DYNP_VALUES_READ'
       EXPORTING
            dyname     = progname
            dynumb     = dynnum
            request    = 'A'
       TABLES
            dynpfields = d_values.

  READ TABLE d_values INTO f_value
                        WITH KEY fieldname = 'WA-CARRID'
                                 stepl = l_selline.
  SELECT  carrid connid
    FROM  spfli
    INTO  CORRESPONDING FIELDS OF TABLE tmpitab
    WHERE carrid = f_value-fieldvalue.

  CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
       EXPORTING
            retfield    = 'CONNID'
            dynpprog    = progname
            dynpnr      = dynnum
            dynprofield = 'CONNECTION'
            value_org   = 'S'
       TABLES
            value_tab   = tmpitab.
ENDMODULE.                 " showf4  INPUT

 

 

***************

PROCESS BEFORE OUTPUT.

  MODULE status_0100.

  MODULE tc01_change_tc_attr.
  LOOP AT   itab
       INTO wa
       WITH CONTROL tc01
       CURSOR tc01-current_line.
  ENDLOOP.

PROCESS AFTER INPUT.

  MODULE user_command_0100.
  LOOP AT itab.
    CHAIN.
      FIELD wa-carrid.
      FIELD wa-connid.

      MODULE tc01_modify ON CHAIN-REQUEST.
    ENDCHAIN.
  ENDLOOP.

PROCESS ON VALUE-REQUEST.
  FIELD wa-connid MODULE showf4.