Create, Modify and Delete entries dynamically from any custom table by using Object Oriented ALVBy Padmanaban Ramakrishnan, CapgeminiObjective: This program is used to create, modify and delete entries dynamically from any custom table by using object oriented ALV. Step by Step procedure 1. Go to SE80-> create a program and write the following code TYPE-POOLS: vimty.TYPES : BEGIN OF ty_mod, row TYPE i, END OF ty_mod.DATA: g_container TYPE scrfname VALUE 'CUSTOM_CONTAINER', grid1 TYPE REF TO cl_gui_alv_grid, g_custom_container TYPE REF TO cl_gui_custom_container.DATA: i_table TYPE REF TO data, wa_all TYPE REF TO data.DATA: org_crit_inst TYPE vimty_oc_type, old_rc LIKE sy-subrc, act_level LIKE authb-actvt, only_show_allowed TYPE c, i_exclude TYPE ui_functions.DATA : i_mod TYPE STANDARD TABLE OF ty_mod, i_del TYPE STANDARD TABLE OF ty_mod.FIELD-SYMBOLS: TYPE table, TYPE ANY.DATA: BEGIN OF header OCCURS 1. INCLUDE STRUCTURE vimdesc.DATA: END OF header.DATA: BEGIN OF namtab OCCURS 50. INCLUDE STRUCTURE vimnamtab.DATA: END OF namtab.DATA: vim_wheretab LIKE vimwheretb OCCURS 10.DATA: dba_sellist LIKE vimsellist OCCURS 10.SELECTION-SCREEN BEGIN OF BLOCK bb WITH FRAME TITLE text-100.PARAMETER: viewname TYPE tvdir-tabname.SELECTION-SCREEN SKIP 2.SELECTION-SCREEN BEGIN OF LINE.SELECTION-SCREEN PUSHBUTTON 20(10) text-101 USER-COMMAND b1. "DisplaySELECTION-SCREEN PUSHBUTTON 36(10) text-102 USER-COMMAND b2. "ChangeSELECTION-SCREEN END OF LINE.SELECTION-SCREEN END OF BLOCK bb.AT SELECTION-SCREEN. CASE sy-ucomm. WHEN 'B1'. SET PF-STATUS 'ALV'. CALL SCREEN 9001. WHEN 'B2'. SET PF-STATUS 'ALV1'. CALL SCREEN 9001. ENDCASE.* Class used to get changed dataCLASS lcl_event_handler DEFINITION . PUBLIC SECTION . METHODS: handle_data_changed FOR EVENT data_changed OF cl_gui_alv_grid IMPORTING er_data_changed.ENDCLASS. "lcl_event_handler DEFINITION* Class used to get changed dataCLASS lcl_event_handler IMPLEMENTATION .* Handle Data Changed METHOD handle_data_changed . PERFORM handle_data_changed USING er_data_changed . ENDMETHOD. "handle_data_changedENDCLASS. "lcl_event_handler IMPLEMENTATION

Save and activate. 2. Create a screen 9001 with custom container. Screen 9001 flow logic looks like the following 3. In the PBO event (Module STATUS_9001), write the following code.*&---------------------------------------------------------------------**& Module STATUS_9001 OUTPUT*&---------------------------------------------------------------------** text*----------------------------------------------------------------------*MODULE status_9001 OUTPUT. DATA : gr_event_handler TYPE REF TO lcl_event_handler .* Creating an instance for the event handler CREATE OBJECT gr_event_handler . TRY. CREATE DATA i_table TYPE TABLE OF (viewname). ASSIGN i_table->* TO . CREATE DATA wa_all LIKE LINE OF . ASSIGN wa_all->* TO .* Selecting data dynamically SELECT * FROM (viewname) INTO TABLE .* Building the fieldcatelog CALL FUNCTION 'LVC_FIELDCATALOG_MERGE' EXPORTING i_structure_name = viewname CHANGING ct_fieldcat = li_fieldcat EXCEPTIONS inconsistent_interface = 1 program_error = 2 OTHERS = 3. IF sy-subrc 0. MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4. ENDIF.* Making fields editable except key fields IF sy-ucomm = 'UPD' OR sy-ucomm = 'CHANGE'. LOOP AT li_fieldcat INTO lwa_fieldcat. IF lwa_fieldcat-key = space. lwa_fieldcat-edit = 'X'. MODIFY li_fieldcat FROM lwa_fieldcat. ENDIF. ENDLOOP. ENDIF.* Making fields editable IF sy-ucomm = 'NEW'. LOOP AT li_fieldcat INTO lwa_fieldcat. lwa_fieldcat-edit = 'X'. MODIFY li_fieldcat FROM lwa_fieldcat. ENDLOOP. lh_flag = 'X'. CLEAR : . DO 100 TIMES. APPEND TO . ENDDO. ENDIF.* Exclude buttons PERFORM exclude_tb_functions CHANGING i_exclude. IF g_custom_container IS INITIAL. CREATE OBJECT g_custom_container EXPORTING container_name = g_container. CREATE OBJECT grid1 EXPORTING i_parent = g_custom_container. ENDIF.* Making all fields non-editable if display mode IF sy-ucomm = 'SHOW'. LOOP AT li_fieldcat INTO lwa_fieldcat. lwa_fieldcat-edit = ' '. MODIFY li_fieldcat FROM lwa_fieldcat. ENDLOOP. ENDIF. IF sy-ucomm = 'SAVE'. LOOP AT li_fieldcat INTO lwa_fieldcat. IF lwa_fieldcat-key NE space. lwa_fieldcat-edit = space. MODIFY li_fieldcat FROM lwa_fieldcat. ENDIF. ENDLOOP. ENDIF.* Displaying ALV Grid CALL METHOD grid1->set_table_for_first_display EXPORTING i_structure_name = viewname it_toolbar_excluding = i_exclude CHANGING it_outtab = it_fieldcatalog = li_fieldcat. IF sy-subrc NE 0. EXIT. ENDIF.* Getting the changed data SET HANDLER gr_event_handler->handle_data_changed FOR grid1 . CATCH cx_sy_create_data_error. ENDTRY.ENDMODULE. " STATUS_9001 OUTPUT4. In the PAI Event (Module USER_COMMAND_9001), write the following code*&------------------------------------------------------------**& Module USER_COMMAND_9001 INPUT*&------------------------------------------------------------** text*-------------------------------------------------------------*MODULE user_command_9001 INPUT. DATA : lh_norec TYPE i, lh_total(5) TYPE c, lh_succ(40) TYPE c, lwa_del TYPE ty_mod, lwa_mod TYPE ty_mod, lh_totdel TYPE i, lh_flag TYPE c, li_fieldcat TYPE lvc_t_fcat, lwa_fieldcat TYPE lvc_s_fcat. CASE sy-ucomm. WHEN 'CHANGE'. SET PF-STATUS 'ALV1'. WHEN 'SAVE'.* Lock the table CALL FUNCTION 'ENQUEUE_E_TABLE' EXPORTING mode_rstable = 'E' tabname = viewname EXCEPTIONS foreign_lock = 1 system_failure = 2 OTHERS = 3. IF sy-subrc 0. MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4. ENDIF. IF NOT grid1 IS INITIAL . CALL METHOD grid1->check_changed_data . ENDIF . SORT i_mod BY row. DELETE ADJACENT DUPLICATES FROM i_mod COMPARING row. lh_norec = LINES( i_mod ). lh_total = lh_norec. SHIFT lh_total LEFT DELETING LEADING space.* Standard Table Update IF i_mod[] IS NOT INITIAL. LOOP AT i_mod INTO lwa_mod. READ TABLE INTO INDEX lwa_mod-row. IF sy-subrc = 0 . IF lh_flag NE 'X'. MODIFY (viewname) FROM . ELSE. INSERT (viewname) FROM . IF sy-subrc NE 0. MESSAGE e009. ENDIF. ENDIF. ENDIF. ENDLOOP. CONCATENATE lh_total ' ' text-s01 INTO lh_succ SEPARATED BY space. MESSAGE i000 WITH lh_succ. ELSE. MESSAGE i000 WITH text-s02. ENDIF.* Unlock the table CALL FUNCTION 'DEQUEUE_E_TABLE' EXPORTING mode_rstable = 'E' tabname = viewname. CLEAR : i_mod[], lh_flag. WHEN 'DELETE'.* Selecting Selected Rows PERFORM handle_user_command USING sy-ucomm. IF i_del[] IS NOT INITIAL. LOOP AT i_del INTO lwa_del. READ TABLE INTO INDEX lwa_del-row. IF sy-subrc = 0. DELETE (viewname) FROM . ENDIF. ENDLOOP. lh_totdel = LINES( i_del ). MESSAGE i011 WITH lh_totdel. CLEAR : i_del[], lh_totdel . ELSE. MESSAGE i000 WITH text-s03. ENDIF. WHEN 'EXIT' OR 'BACK' OR 'CANCEL'. CLEAR : li_fieldcat[], i_exclude[], i_del[], lh_totdel. LEAVE TO SCREEN 0. ENDCASE.ENDMODULE. " USER_COMMAND_9001 INPUT5. Write the following forms at the end of the program*&---------------------------------------------------------------------**& Form handle_data_changed*&---------------------------------------------------------------------*FORM handle_data_changed USING p_er_data_changed TYPE REF TO cl_alv_changed_data_protocol. DATA : lwa_mod_cell TYPE lvc_s_modi, lwa_mod TYPE ty_mod. LOOP AT p_er_data_changed->mt_good_cells INTO lwa_mod_cell. lwa_mod-row = lwa_mod_cell-row_id. APPEND lwa_mod TO i_mod. ENDLOOP.ENDFORM. " handle_data_changed*&---------------------------------------------------------------------**& Form exclude_tb_functions*&---------------------------------------------------------------------*FORM exclude_tb_functions CHANGING pt_exclude TYPE ui_functions . DATA: lwa_exclude TYPE ui_func. lwa_exclude = cl_gui_alv_grid=>mc_fc_loc_append_row. APPEND lwa_exclude TO pt_exclude. lwa_exclude = cl_gui_alv_grid=>mc_fc_loc_copy. APPEND lwa_exclude TO pt_exclude. lwa_exclude = cl_gui_alv_grid=>mc_fc_loc_copy_row. APPEND lwa_exclude TO pt_exclude. lwa_exclude = cl_gui_alv_grid=>mc_fc_loc_cut. APPEND lwa_exclude TO pt_exclude. lwa_exclude = cl_gui_alv_grid=>mc_fc_loc_delete_row. APPEND lwa_exclude TO pt_exclude. lwa_exclude = cl_gui_alv_grid=>mc_fc_loc_insert_row. APPEND lwa_exclude TO pt_exclude. lwa_exclude = cl_gui_alv_grid=>mc_fc_loc_move_row. APPEND lwa_exclude TO pt_exclude. lwa_exclude = cl_gui_alv_grid=>mc_fc_loc_paste. APPEND lwa_exclude TO pt_exclude. lwa_exclude = cl_gui_alv_grid=>mc_fc_loc_paste_new_row. APPEND lwa_exclude TO pt_exclude.ENDFORM. "exclude_tb_functions*&---------------------------------------------------------------------**& Form handle_user_command*&---------------------------------------------------------------------*FORM handle_user_command USING p_ucomm TYPE syucomm. DATA : i_selected_rows TYPE lvc_t_roid . DATA : lwa_selected_row TYPE lvc_s_roid, lwa_del TYPE ty_mod. CALL METHOD grid1->get_selected_rows IMPORTING et_row_no = i_selected_rows. LOOP AT i_selected_rows INTO lwa_selected_row. lwa_del-row = lwa_selected_row-row_id. APPEND lwa_del TO i_del. ENDLOOP.ENDFORM. " handle_user_command6. Create PF Status like ALV

7. Create PF Status ALV1 8. Create Text Elements 9. Create transaction for the program (T-code SE93)

Save and activate 10. Execute the transaction (ZOOALV) Select any custom table (starting with z or y). Ex- ZZZTESTTIME Press Display button Output

Press Change Button Press Create Button Type data and SAVE

Press Change Button Before Changing Changing Value

Save

After saving Delete After Delete