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