在alv中对编辑字段设置F4帮助及下拉框

主要的参数设置：
lv_fldcat-f4availabl = 'X'.
lv_fldcat-ref_table = 'T582A'.
lv_fldcat-ref_field = 'ZEITB'.

程序代码：

*Type pools for ALV
TYPE-POOLS : slis.
*structure for t582a tbale
TYPES : BEGIN OF ty_table,
infty TYPE infty,
pnnnn TYPE pnnnn_d,
zrmkz TYPE dzrmkz,
zeitb TYPE dzeitb,
dname TYPE dianm,
davo TYPE davo,
davoe TYPE davoe,
END OF ty_table.
*Structure for infotype text
TYPES : BEGIN OF ty_itext,
infty TYPE infty,
itext TYPE intxt,
sprsl TYPE sprsl,
END OF ty_itext.
*Structure for output display
TYPES : BEGIN OF ty_output,
infty TYPE infty,
itext TYPE intxt,
pnnnn TYPE pnnnn_d,
zrmkz TYPE dzrmkz,
zeitb TYPE dzeitb,
dname TYPE dianm,
davo TYPE davo,
davoe TYPE davoe,
END OF ty_output.
*internal table and work area declarations
DATA : it_table TYPE STANDARD TABLE OF ty_table INITIAL SIZE 0,
it_output TYPE STANDARD TABLE OF ty_output INITIAL SIZE 0,
it_pbo TYPE STANDARD TABLE OF ty_output INITIAL SIZE 0,
it_ittext TYPE STANDARD TABLE OF ty_itext INITIAL SIZE 0,
wa_table TYPE ty_table,
wa_output TYPE ty_output,
wa_ittext TYPE ty_itext.
*Data declarations for dropdown lists for f4
DATA: it_dropdown TYPE lvc_t_drop,
ty_dropdown TYPE lvc_s_drop,
*data declaration for refreshing of alv
stable TYPE lvc_s_stbl.
*Global variable declaration
DATA: gstring TYPE c.
*Data declarations for ALV
DATA: c_ccont TYPE REF TO cl_gui_custom_container, "Custom container object
c_alvgd TYPE REF TO cl_gui_alv_grid, "ALV grid object
it_fcat TYPE lvc_t_fcat, "Field catalogue
it_layout TYPE lvc_s_layo. "Layout
*ok code declaration
DATA:
ok_code TYPE ui_func.
*initialization event
INITIALIZATION.
*start of selection event
START-OF-SELECTION.
*select the infotypes maintained
SELECT infty
pnnnn
zrmkz
zeitb
dname
davo
davoe
FROM t582a UP TO 10 ROWS
INTO CORRESPONDING FIELDS OF TABLE it_table.
* *Select the infotype texts
IF it_table[] IS NOT INITIAL.
SELECT itext
infty
sprsl
FROM t582s
INTO CORRESPONDING FIELDS OF TABLE it_ittext
FOR ALL ENTRIES IN it_table
WHERE infty = it_table-infty
AND sprsl = 'E'.
ENDIF.
*Apppending the data to the internal table of ALV output
LOOP AT it_table INTO wa_table.
wa_output-infty = wa_table-infty.
wa_output-pnnnn = wa_table-pnnnn.
wa_output-zrmkz = wa_table-zrmkz.
wa_output-zeitb = wa_table-zeitb.
wa_output-dname = wa_table-dname.
wa_output-davo = wa_table-davo.
wa_output-davoe = wa_table-davoe.
* For texts
READ TABLE it_ittext INTO wa_ittext WITH KEY infty = wa_table-infty.
wa_output-itext = wa_ittext-itext.
APPEND wa_output TO it_output.
CLEAR wa_output.
ENDLOOP.
* Calling the ALV screen with custom container
CALL SCREEN 0600.
*On this statement double click it takes you to the screen painter SE51.
*Enter the attributes
*Create a Custom container and name it CCONT and OK code as OK_CODE.
*Save check and Activate the screen painter.
*Now a normal screen with number 600 is created which holds the ALV grid.
* PBO of the actual screen ,
* Here we can give a title and customized menus
*create 2 buttons with function code 'SAVE' and 'EXIT'.
* GIVE A SUITABLE TITLE
*&---------------------------------------------------------------------*
*& Module STATUS_0600 OUTPUT
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
MODULE status_0600 OUTPUT.
SET PF-STATUS 'DISP'.
* SET TITLEBAR 'ALVF4'.
ENDMODULE. " STATUS_0600 OUTPUT
* calling the PBO module ALV_GRID.
*&---------------------------------------------------------------------*
*& Module PBO OUTPUT
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
MODULE pbo OUTPUT.
*Creating objects of the container
CREATE OBJECT c_ccont
EXPORTING
container_name = 'CCONT'.
* create object for alv grid
create object c_alvgd
exporting
i_parent = c_ccont.
* SET field for ALV
PERFORM alv_build_fieldcat.
* Set ALV attributes FOR LAYOUT
PERFORM alv_report_layout.
CHECK NOT c_alvgd IS INITIAL.
* Call ALV GRID
CALL METHOD c_alvgd->set_table_for_first_display
EXPORTING
is_layout = it_layout
i_save = 'A'
CHANGING
it_outtab = it_output
it_fieldcatalog = it_fcat
EXCEPTIONS
invalid_parameter_combination = 1
program_error = 2
too_many_lines = 3
OTHERS = 4.
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
ENDMODULE. " PBO OUTPUT
*&---------------------------------------------------------------------*
*& Form alv_build_fieldcat
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* <--P_IT_FCAT text
*----------------------------------------------------------------------*
*subroutine to build fieldcat
FORM alv_build_fieldcat.
DATA lv_fldcat TYPE lvc_s_fcat.
CLEAR lv_fldcat.
lv_fldcat-row_pos = '1'.
lv_fldcat-col_pos = '1'.
lv_fldcat-fieldname = 'INFTY'.
lv_fldcat-tabname = 'IT_OUTPUT'.
lv_fldcat-outputlen = 8.
lv_fldcat-scrtext_m = 'Infotype'.
lv_fldcat-icon = 'X'.
APPEND lv_fldcat TO it_fcat.
CLEAR lv_fldcat.
lv_fldcat-row_pos = '1'.
lv_fldcat-col_pos = '2'.
lv_fldcat-fieldname = 'PNNNN'.
lv_fldcat-tabname = 'IT_OUTPUT'.
lv_fldcat-outputlen = 15.
lv_fldcat-scrtext_m = 'Structure'.
lv_fldcat-icon = ''.
APPEND lv_fldcat TO it_fcat.
CLEAR lv_fldcat.
lv_fldcat-row_pos = '1'.
lv_fldcat-col_pos = '3'.
lv_fldcat-fieldname = 'ITEXT'.
lv_fldcat-tabname = 'IT_OUTPUT'.
lv_fldcat-outputlen = 60.
lv_fldcat-scrtext_m = 'Description'.
lv_fldcat-icon = ''.
APPEND lv_fldcat TO it_fcat.
CLEAR lv_fldcat.
lv_fldcat-row_pos = '1'.
lv_fldcat-col_pos = '5'.
lv_fldcat-fieldname = 'ZRMKZ'.
lv_fldcat-tabname = 'IT_OUTPUT'.
lv_fldcat-outputlen = 1.
lv_fldcat-scrtext_m = 'PERIOD'.
lv_fldcat-icon = ''.
APPEND lv_fldcat TO it_fcat.
CLEAR lv_fldcat.
lv_fldcat-row_pos = '1'.
lv_fldcat-col_pos = '6'.
lv_fldcat-fieldname = 'ZEITB'.
lv_fldcat-tabname = 'IT_OUTPUT'.
lv_fldcat-outputlen = 5.
lv_fldcat-scrtext_m = 'Time constraint'.
lv_fldcat-edit = 'X'.
*To avail the existing F4 help these are to
*be given in the field catalogue
lv_fldcat-f4availabl = 'X'.
lv_fldcat-ref_table = 'T582A'.
lv_fldcat-ref_field = 'ZEITB'.
APPEND lv_fldcat TO it_fcat.
CLEAR lv_fldcat.
lv_fldcat-row_pos = '1'.
lv_fldcat-col_pos = '7'.
lv_fldcat-fieldname = 'DNAME'.
lv_fldcat-tabname = 'IT_OUTPUT'.
lv_fldcat-outputlen = 15.
lv_fldcat-scrtext_m = 'Dialogmodule'.
lv_fldcat-icon = ''.
APPEND lv_fldcat TO it_fcat.
CLEAR lv_fldcat.
lv_fldcat-row_pos = '1'.
lv_fldcat-col_pos = '8'.
lv_fldcat-fieldname = 'DAVO'.
lv_fldcat-tabname = 'IT_OUTPUT'.
lv_fldcat-outputlen = 15.
lv_fldcat-scrtext_m = 'Start'.
lv_fldcat-edit = 'X'.
APPEND lv_fldcat TO it_fcat.
CLEAR lv_fldcat.
lv_fldcat-row_pos = '1'.
lv_fldcat-col_pos = '9'.
lv_fldcat-fieldname = 'DAVOE'.
lv_fldcat-tabname = 'IT_OUTPUT'.
lv_fldcat-outputlen = 15.
lv_fldcat-scrtext_m = 'End'.
lv_fldcat-icon = ''.
APPEND lv_fldcat TO it_fcat.
CLEAR lv_fldcat.
*To create drop down for the field 'DAVO'
* with our own f4 help
ty_dropdown-handle = '1'.
ty_dropdown-value = ' '.
APPEND ty_dropdown TO it_dropdown.
ty_dropdown-handle = '1'.
ty_dropdown-value = '1'.
APPEND ty_dropdown TO it_dropdown.
ty_dropdown-handle = '1'.
ty_dropdown-value = '2'.
APPEND ty_dropdown TO it_dropdown.
ty_dropdown-handle = '1'.
ty_dropdown-value = '3'.
APPEND ty_dropdown TO it_dropdown.
CALL METHOD c_alvgd->set_drop_down_table
EXPORTING
it_drop_down = it_dropdown.
LOOP AT it_fcat INTO lv_fldcat.
CASE lv_fldcat-fieldname.
** To assign dropdown in the fieldcataogue
WHEN 'DAVO'.
lv_fldcat-drdn_hndl = '1'.
lv_fldcat-outputlen = 15.
MODIFY it_fcat FROM lv_fldcat.
ENDCASE.
ENDLOOP.
ENDFORM. " alv_build_fieldcat
*&---------------------------------------------------------------------*
*& Form alv_report_layout
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* <--P_IT_LAYOUT text
*----------------------------------------------------------------------*
*Subroutine for setting alv layout
FORM alv_report_layout.
it_layout-cwidth_opt = 'X'.
it_layout-col_opt = 'X'.
it_layout-zebra = 'X'.
ENDFORM. " alv_report_layout
* PAI module of the screen created. In case we use an interactive ALV or
*for additional functionalities we can create OK codes
*and based on the user command we can do the coding.
*&---------------------------------------------------------------------*
*& Module PAI INPUT
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
MODULE pai INPUT.
*To change the existing values and refresh the grid
*And only values in the dropdown or in the default
*F4 can be given , else no action takes place for the dropdown
*and error is thrown for the default F4 help and font changes to red
*and on still saving, value is not changed
c_alvgd->check_changed_data( ).
*Based on the user input
*When user clicks 'SAVE;
CASE ok_code.
WHEN 'SAVE'.
*A pop up is called to confirm the saving of changed data
CALL FUNCTION 'POPUP_TO_CONFIRM'
EXPORTING
titlebar = 'SAVING DATA'
text_question = 'Continue?'
icon_button_1 = 'icon_booking_ok'
IMPORTING
answer = gstring
EXCEPTIONS
text_not_found = 1
OTHERS = 2.
IF sy-subrc NE 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
*When the User clicks 'YES'
IF ( gstring = '1' ).
MESSAGE 'Saved' TYPE 'S'.
*Now the changed data is stored in the it_pbo internal table
it_pbo = it_output.
*Subroutine to display the ALV with changed data.
PERFORM redisplay.
ELSE.
*When user clicks NO or Cancel
MESSAGE 'Not Saved' TYPE 'S'.
ENDIF.
**When the user clicks the 'EXIT; he is out
WHEN 'EXIT'.
LEAVE PROGRAM.
ENDCASE.
CLEAR: ok_code.
ENDMODULE. " PAI INPUT
*&---------------------------------------------------------------------*
*& Form REDISPLAY
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* --> p1 text
* <-- p2 text
*----------------------------------------------------------------------*
FORM redisplay .
*Cells of the alv are made non editable after entering OK to save
CALL METHOD c_alvgd->set_ready_for_input
EXPORTING
i_ready_for_input = 0.
*Row and column of the alv are refreshed after changing values
stable-row = 'X'.
stable-col = 'X'.
*REfreshed ALV display with the changed values
*This ALV is non editable and contains new values
CALL METHOD c_alvgd->refresh_table_display
EXPORTING
is_stable = stable
EXCEPTIONS
finished = 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.
ENDFORM. " REDISPLAY

复制代码

程序执行效果：

非常好的程序学习中…… 谢谢分享

非常好的程序学习中…… 谢谢分享

[ooalv] 在alv中对编辑字段设置F4帮助及下拉框

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