ABAP DEMO ALVtree显示BOM层级

展示效果：

*&---------------------------------------------------------------------*
*& Report YCX_015
*&---------------------------------------------------------------------*
*&
*&---------------------------------------------------------------------*
REPORT ycx_015 MESSAGE-ID zpp01.

TABLES: stpox.
INCLUDE <icon>.
CLASS: cl_gui_column_tree DEFINITION LOAD,
       cl_gui_cfw DEFINITION LOAD .
DATA: tree1      TYPE REF TO cl_gui_alv_tree,
      mr_toolbar TYPE REF TO cl_gui_toolbar.
DATA: gs_stpox        TYPE stpox,
      gt_stpox        TYPE stpox OCCURS 0,
      gt_fieldcatalog TYPE lvc_t_fcat,
      gt_item_layout  TYPE lvc_t_laci,
      gs_item_layout  TYPE lvc_s_laci,
      okcode          LIKE sy-ucomm.
TYPES: BEGIN OF gs_f.
         INCLUDE STRUCTURE stpox.
         TYPES: node_key TYPE lvc_nkey,
       END   OF gs_f.
DATA: gs_xstpox TYPE gs_f,
      gt_xstpox TYPE gs_f OCCURS 0.

DATA: l_custom_container TYPE REF TO cl_gui_custom_container.

DATA: wa_topmat TYPE cstmat,
      wa_dstst  TYPE csdata-xfeld.
DATA: it_matcat TYPE STANDARD TABLE OF cscmat.



PARAMETERS:p_matnr LIKE mast-matnr  OBLIGATORY,
           p_werks LIKE mast-werks  OBLIGATORY,
           p_stlal LIKE mast-stlal  OBLIGATORY DEFAULT '01',   "可选的 BOM
           p_capid LIKE rc29l-capid OBLIGATORY DEFAULT 'PP01'. "BOM应用程序

*PARAMETERS: p_matnr LIKE mara-matnr, "DEFAULT 'YW25K',
*            p_werks LIKE ekpo-werks. "DEFAULT '1010' .

START-OF-SELECTION.
  PERFORM getdata.
  CALL SCREEN 9000.


*&---------------------------------------------------------------------*
*&      Form  getdata
*&---------------------------------------------------------------------*
FORM getdata.

*&bom explosion
*  CALL FUNCTION 'CS_BOM_EXPL_MAT_V2'
**   EXPORTING
**     FTREL                       = ' '
**     ALEKZ                       = ' '
**     ALTVO                       = ' '
**     AUFSW                       = ' '
**     AUMGB                       = ' '
**     AUMNG                       = 0
**     AUSKZ                       = ' '
**     AMIND                       = ' '
**     BAGRP                       = ' '
**     BEIKZ                       = ' '
**     BESSL                       = ' '
**     BGIXO                       = ' '
**     BREMS                       = ' '
**     CAPID                       = 'STD1'
**     CHLST                       = ' '
**     COSPR                       = ' '
**     CUOBJ                       = 000000000000000
**     CUOVS                       = 0
**     CUOLS                       = ' '
**     DATUV                       = 00000000
**     DELNL                       = ' '
**     DRLDT                       = ' '
**     EHNDL                       = ' '
**     EMENG                       = 0
**     ERSKZ                       = ' '
**     ERSSL                       = ' '
**     FBSTP                       = ' '
**     KNFBA                       = ' '
**     KSBVO                       = ' '
**     MBWLS                       = ' '
**     MKTLS                       = 'X'
**     MDMPS                       = ' '
**     MEHRS                       = ' '
**     MKMAT                       = ' '
**     MMAPS                       = ' '
**     SALWW                       = ' '
**     SPLWW                       = ' '
**     MMORY                       = ' '
**     MTNRV                       = ' '
**     NLINK                       = ' '
**     POSTP                       = ' '
**     RNDKZ                       = ' '
**     RVREL                       = ' '
**     SANFR                       = ' '
**     SANIN                       = ' '
**     SANKA                       = ' '
**     SANKO                       = ' '
**     SANVS                       = ' '
**     SCHGT                       = ' '
**     STKKZ                       = ' '
**     STLAL                       = ' '
**     STLAN                       = ' '
**     STPST                       = 0
**     SVWVO                       = 'X'
**     WERKS                       = ' '
**     NORVL                       = ' '
**     MDNOT                       = ' '
**     PANOT                       = ' '
**     QVERW                       = ' '
**     VERID                       = ' '
**     VRSVO                       = 'X'
**   IMPORTING
**     TOPMAT                      =
**     DSTST                       =
*    TABLES
*      STB                         =
**     MATCAT                      =
**   EXCEPTIONS
**     ALT_NOT_FOUND               = 1
**     CALL_INVALID                = 2
**     MATERIAL_NOT_FOUND          = 3
**     MISSING_AUTHORIZATION       = 4
**     NO_BOM_FOUND                = 5
**     NO_PLANT_DATA               = 6
**     NO_SUITABLE_BOM_FOUND       = 7
**     CONVERSION_ERROR            = 8
**     OTHERS                      = 9

  CALL FUNCTION 'CS_BOM_EXPL_MAT_V2'
    EXPORTING
      capid                 = p_capid  "'CAD1'
      datuv                 = sy-datum
      emeng                 = '1'      "基本用量
      mtnrv                 = p_matnr
      werks                 = p_werks
      mktls                 = 'X' "p_key
      mehrs                 = 'X'       "p_mehrs
      stlal                 = p_stlal     "可选BOM
      stlan                 = '1'      "BOM 用途
*     emeng                 = 1
    IMPORTING
      topmat                = wa_topmat
      dstst                 = wa_dstst
    TABLES
      stb                   = gt_stpox
      matcat                = it_matcat
    EXCEPTIONS
      alt_not_found         = 1
      call_invalid          = 2
      material_not_found    = 3
      missing_authorization = 4
      no_bom_found          = 5
      no_plant_data         = 6
      no_suitable_bom_found = 7
      conversion_error      = 8
      OTHERS                = 9.
*  CASE sy-subrc .
*    WHEN 1 .
*      MESSAGE e899(fi) WITH 'alt_not_found'.
*    WHEN 2 .
*      MESSAGE e899(fi) WITH 'call_invalid '.
*    WHEN 3 .
*      MESSAGE e899(fi) WITH 'material_not_found'.
*    WHEN 4 .
*      MESSAGE e899(fi) WITH 'missing_authorization'.
*    WHEN 5 .
*      MESSAGE e899(fi) WITH 'no_bom_found'.
*    WHEN 6 .
*      MESSAGE e899(fi) WITH 'no_plant_data'.
*    WHEN 7 .
*      MESSAGE e899(fi) WITH 'no_suitable_bom_found'.
*    WHEN 8 .
*      MESSAGE e899(fi) WITH 'conversion_error'.
*    WHEN 9 .
*      MESSAGE e899(fi) WITH 'OTHERS Error'.
*  ENDCASE.
  LOOP AT gt_stpox INTO gs_stpox.
    MOVE-CORRESPONDING gs_stpox TO gs_xstpox .
    APPEND gs_xstpox TO gt_xstpox.
  ENDLOOP.
ENDFORM.                    "getdata
*----------------------------------------------------------------------*
*  MODULE status_9000 OUTPUT
*----------------------------------------------------------------------*
MODULE status_9000 OUTPUT.
  SET PF-STATUS 'MAIN'.
  SET TITLEBAR 'TITLE'.
  IF tree1 IS INITIAL.
    PERFORM init_tree.
  ENDIF.
  CALL METHOD cl_gui_cfw=>flush.
ENDMODULE.                 " PBO_9000  OUTPUT
*----------------------------------------------------------------------*
*  MODULE user_command_9000 INPUT
*----------------------------------------------------------------------*
MODULE user_command_9000 INPUT.
  CASE okcode.
    WHEN '&F03'  OR '&F15' OR '&F12'."'EXIT' OR 'BACK' OR 'CANC'.
      CALL METHOD tree1->free.
      LEAVE PROGRAM .
    WHEN OTHERS.
      CALL METHOD cl_gui_cfw=>dispatch.
  ENDCASE.
  CLEAR okcode.
  CALL METHOD cl_gui_cfw=>flush.
ENDMODULE.                 " okcode  INPUT
*&---------------------------------------------------------------------*
*&      Module  EXIT  INPUT
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
MODULE exit INPUT.
  CASE okcode.
    WHEN '&F03'  OR '&F15' OR '&F12'."'EXIT' OR 'BACK' OR 'CANC'.
      CALL METHOD tree1->free.
      LEAVE PROGRAM .
    WHEN OTHERS.
*      CALL METHOD cl_gui_cfw=>dispatch.
  ENDCASE.
  CLEAR okcode.
  CALL METHOD cl_gui_cfw=>flush.

ENDMODULE.
*&---------------------------------------------------------------------*
*&      Form  init_tree
*&---------------------------------------------------------------------*
FORM init_tree .
  PERFORM build_fieldcatalog.
  IF sy-batch IS INITIAL.
    CREATE OBJECT l_custom_container
      EXPORTING
        container_name              = 'TREE1'
      EXCEPTIONS
        cntl_error                  = 1
        cntl_system_error           = 2
        create_error                = 3
        lifetime_error              = 4
        lifetime_dynpro_dynpro_link = 5.
    IF sy-subrc <> 0.
      MESSAGE e000(00) WITH '创建容器:TREE1 错误'.
    ENDIF.
  ENDIF.
  CREATE OBJECT tree1
    EXPORTING
      parent                      = l_custom_container
*     parent                      = cl_gui_container=>d0
      node_selection_mode         = cl_gui_column_tree=>node_sel_mode_single
      item_selection              = 'X'
      no_html_header              = 'X'
      no_toolbar                  = ' '
    EXCEPTIONS
      cntl_error                  = 1
      cntl_system_error           = 2
      create_error                = 3
      lifetime_error              = 4
      illegal_node_selection_mode = 5
      failed                      = 6
      illegal_column_name         = 7.
  IF sy-subrc <> 0.
    MESSAGE e000 WITH '创建TREE错误'.
  ENDIF.
  DATA l_hierarchy_header TYPE treev_hhdr.
  PERFORM build_hierarchy_header CHANGING l_hierarchy_header.
  DATA: ls_variant TYPE disvariant.
  ls_variant-report = sy-repid.
  CALL METHOD tree1->set_table_for_first_display
    EXPORTING
      is_hierarchy_header = l_hierarchy_header
      i_background_id     = 'ALV_BACKGROUND'
      i_save              = 'A'
      is_variant          = ls_variant
    CHANGING
      it_outtab           = gt_stpox "table must be emty !!
      it_fieldcatalog     = gt_fieldcatalog.
  DATA: l1         TYPE lvc_nkey,l2 TYPE lvc_nkey,l3 TYPE lvc_nkey,l4 TYPE lvc_nkey,
        l5         TYPE lvc_nkey,l6 TYPE lvc_nkey,l7 TYPE lvc_nkey,l8 TYPE lvc_nkey,
        l_key      TYPE lvc_nkey,
        l_last_key TYPE lvc_nkey,
        added .
  LOOP AT gt_xstpox INTO gs_xstpox .
    MOVE-CORRESPONDING gs_xstpox TO gs_stpox.
    CASE gs_stpox-stufe .
      WHEN '1'.
        l_key = ''.
      WHEN '2'.
        l_key = l1.
      WHEN '3'.
        l_key = l2.
      WHEN '4'.
        l_key = l3.
      WHEN '5'.
        l_key = l4.
      WHEN '6'.
        l_key = l5.
    ENDCASE.
    PERFORM add_complete_line USING  gs_stpox l_key
                            CHANGING l_last_key.
    gs_xstpox-node_key = l_last_key.
    CASE gs_stpox-stufe .
      WHEN '1'.
        l1 = l_last_key.
      WHEN '2'.
        l2 = l_last_key.
      WHEN '3'.
        l3 = l_last_key.
      WHEN '4'.
        l4 = l_last_key.
      WHEN '5'.
        l5 = l_last_key.
      WHEN '6'.
        l6 = l_last_key.
    ENDCASE.
    MODIFY gt_xstpox FROM gs_xstpox .
  ENDLOOP.
  CALL METHOD tree1->update_calculations.
  CALL METHOD tree1->frontend_update.
ENDFORM.                    " init_tree
*&---------------------------------------------------------------------*
*&      Form  build_fieldcatalog
*&---------------------------------------------------------------------*
FORM build_fieldcatalog.
  CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
    EXPORTING
      i_structure_name = 'STPOX'
    CHANGING
      ct_fieldcat      = gt_fieldcatalog.
  DATA: ls_fieldcatalog TYPE lvc_s_fcat.
  LOOP AT gt_fieldcatalog INTO ls_fieldcatalog.
*    CASE ls_fieldcatalog-fieldname.
*      WHEN 'CARRID' OR 'CONNID' OR 'FLDATE'.
*        ls_fieldcatalog-no_out = 'X'.
*        ls_fieldcatalog-key    = ''.
*      WHEN 'PRICE' OR 'SEATSOCC' OR 'SEATSMAX' OR 'PAYMENTSUM'.
**        ls_fieldcatalog-do_sum = 'X'.
*      WHEN 'PLANETYPE'.
*        ls_fieldcatalog-edit = 'X'.
*        ls_fieldcatalog-style = cl_gui_alv_grid=>mc_style_enabled .
*    ENDCASE.
    MODIFY gt_fieldcatalog FROM ls_fieldcatalog.
  ENDLOOP.
ENDFORM.                               " build_fieldcatalog
*&---------------------------------------------------------------------*
*&      Form  build_hierarchy_header
*&---------------------------------------------------------------------*
FORM build_hierarchy_header CHANGING
                               p_hierarchy_header TYPE treev_hhdr.
*
  p_hierarchy_header-heading = 'BOM层次'.
  p_hierarchy_header-tooltip = 'ToolTip'.
  p_hierarchy_header-width = 30.
  p_hierarchy_header-width_pix = ''.
*
ENDFORM.                               " build_hierarchy_header
*&---------------------------------------------------------------------*
*&      Form  add_complete_line
*&---------------------------------------------------------------------*
FORM add_complete_line USING  ps_stpox TYPE stpox
                               p_relat_key TYPE lvc_nkey
                     CHANGING  p_node_key TYPE lvc_nkey.
  DATA: l_node_text TYPE lvc_value.
* set item-layout
  DATA: lt_item_layout TYPE lvc_t_layi,
        ls_item_layout TYPE lvc_s_layi.
  DATA: stufe_num(2) TYPE n.
  ls_item_layout-fieldname = tree1->c_hierarchy_column_name.
  ls_item_layout-class     = cl_gui_column_tree=>item_class_text.
*  ls_item_layout-editable  = 'X'.
*  ls_item_layout-chosen    = 'X'.  " 设置为选中状态
  APPEND ls_item_layout TO lt_item_layout.
*  l_node_text =  ps_stpox-ojtxp.
  stufe_num = ps_stpox-stufe.
  CONCATENATE stufe_num ',' ps_stpox-ojtxp INTO l_node_text.
  CALL METHOD tree1->add_node
    EXPORTING
      i_relat_node_key = p_relat_key
      i_relationship   = cl_gui_column_tree=>relat_last_child
      is_outtab_line   = ps_stpox
      i_node_text      = l_node_text
      it_item_layout   = lt_item_layout
    IMPORTING
      e_new_node_key   = p_node_key.
ENDFORM.                               " add_complete_line

GUI状态：

SCREEN 9000  最简单的方式创建屏幕