ALV_TREE 一:cl_gui_alv_tree_simple

先看效果图:

ALV_TREE 一:cl_gui_alv_tree_simple


用cl_gui_alv_tree_simple 这个类


下面直接上干货:


首先

建一个屏幕 9001

画一个容器,取名:TREE


定义数据:

*功能码返回值
DATA: ok_code TYPE sy-ucomm,
      save_ok TYPE sy-ucomm.

DATA:
      wa_container_tree        TYPE        scrfname VALUE 'TREE',  " 
      wa_custom_container_tree TYPE REF TO cl_gui_custom_container," 
      tree_grid                TYPE REF TO cl_gui_alv_tree_simple.


DATA: gb_fieldcat TYPE lvc_t_fcat.                                 "控制输出列
DATA: gb_sortfld  TYPE lvc_t_sort.                                 "控制节点



"定义事件注册类(使用双击事件)

*----------------------------------------------------------------------*
*   INCLUDE BCALV_TREE_EVENT_REC_DRAGDROP                              *
*----------------------------------------------------------------------*
CLASS cl_tree_event_receiver DEFINITION.

  PUBLIC SECTION.
*   double click item
    METHODS handle_double_click
      FOR EVENT node_double_click OF cl_gui_alv_tree_simple
      IMPORTING index_outtab
                grouplevel.
ENDCLASS.                    "CL_TREE_EVENT_RECEIVER DEFINITION
*---------------------------------------------------------------------*
*       CLASS CL_TREE_EVENT_RECEIVER IMPLEMENTATION
*---------------------------------------------------------------------*
CLASS cl_tree_event_receiver IMPLEMENTATION.
  METHOD handle_double_click.
    CHECK NOT index_outtab IS INITIAL.
    "获取当前行
    READ TABLE gt_show(数据内表) INTO l_wa_data INDEX index_outtab.
    if sy-subrc  = 0.

    "事件操作

    endif.
  ENDMETHOD.                    "HANDLE_DOUBLE_CLICK
ENDCLASS.                    "CL_TREE_EVENT_RECEIVER IMPLEMENTATION




下面是创建树的过程:

FORM zform_create_tree.
  IF wa_custom_container_tree IS INITIAL.

   "事件相关
    DATA: tree_event_receiver TYPE REF TO cl_tree_event_receiver.
    CREATE OBJECT tree_event_receiver.
   

   "报表头
    DATA ls_list_comm  TYPE slis_t_listheader.
    DATA ls_alist_comm TYPE slis_listheader.

    ls_alist_comm-typ = 'H'.
    ls_alist_comm-info = '报表'.
    APPEND ls_alist_comm TO ls_list_comm.

    "填充输出结构
    PERFORM zform_fieldcat.
    "控制输出层次
    PERFORM zform_field_level.

    CREATE OBJECT wa_custom_container_tree
      EXPORTING
        container_name = wa_container_tree.

    CREATE OBJECT tree_grid
      EXPORTING
        i_parent = wa_custom_container_tree.

    CALL METHOD tree_grid->set_table_for_first_display
      EXPORTING
        it_list_commentary = ls_list_comm
   "    i_structure_name   = 'ZTEST_SHOW'         "se11建的想要展示的结构
      CHANGING
        it_sort            = gb_sortfld
        it_fieldcatalog    = gb_fieldcat
        it_outtab          = gt_show[].           "数据表


    CALL METHOD tree_grid->expand_tree
      EXPORTING
        i_level = 1.


 "调用事件
** register events
    PERFORM register_events.
** set handler for tree1
    SET HANDLER tree_event_receiver->handle_double_click FOR tree_grid.
  ENDIF.
ENDFORM.      



控制输出字段

FORM zform_fieldcat.
  CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
    EXPORTING
      i_structure_name = 'ZTEST_BJH_CHECK_SHOW1'
    CHANGING
      ct_fieldcat      = gb_fieldcat.

  DATA ls_fldcat TYPE lvc_s_fcat.

  LOOP AT gb_fieldcat INTO ls_fldcat.
     ls_fldcat-hotspot = 'X'.
    CASE ls_fldcat-fieldname.
      WHEN
        字段某某
        ls_fldcat-outputlen = 15. "设置长度是15
      WHEN OTHERS.
        ls_fldcat-no_out = 'X'.   "不需要显示的设置为不输出
    ENDCASE.

    IF ls_fldcat-fieldname = 'TSLVT'. "对TSLVT(金额)字段进行求和
*      ls_fldcat-do_sum = 'X'.
    ENDIF.
    MODIFY gb_fieldcat FROM ls_fldcat.
  ENDLOOP.
ENDFORM.                    "zform_fieldcat



"控制展现层次(第一层是地区,第二层是上级科目,第三层是目标科目

FORM zform_field_level.
  DATA:
      l_index TYPE int4 VALUE '1'.
  DATA ls_sortfld TYPE lvc_s_sort.


  ls_sortfld-spos         = l_index.
  ls_sortfld-fieldname    = 'QYDM'.            "区域           "
  ls_sortfld-up           = 'X'.
  ls_sortfld-subtot       = 'X'.
  APPEND ls_sortfld TO gb_sortfld.
  l_index = l_index + 1.

  ls_sortfld-spos         = l_index.
  ls_sortfld-fieldname    = 'HKONT_PREV'.  "上级科目编号              "
  ls_sortfld-up           = 'X'.
  ls_sortfld-subtot       = 'X'.
  APPEND ls_sortfld TO gb_sortfld.
  l_index = l_index + 1.


  ls_sortfld-spos         = l_index.
  ls_sortfld-fieldname    = 'HKONT'.        "科目编号              "
  ls_sortfld-up           = 'X'.
  ls_sortfld-subtot       = 'X'.
  APPEND ls_sortfld TO gb_sortfld.
  l_index = l_index + 1.
ENDFORM.                    "zform_field_level


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