ALV Tree Demo using RS_TREE_LIST_DISPLAY and RS_TREE_CONSTRUCT (Six levels)

By Swarna S, Tata Consultancy Services

*&--------------------------------------------------------------*
*& Report  Z_Simpletree                                         *
*& Author : Swarna.S.                                           *
*& Published at SAPTechnical.COM
*&--------------------------------------------------------------*
*& AS : Simple tree report using RS_TREE_CONSTRUCT              *
*& and RS_TREE_LIST_DISPLAY upto 6 levels                       *
*&-------------------------------------------------------------*
REPORT  z_simpletree.
* type pool declarations for tree
TYPE-POOLS : fibs,stree.
*Data declaration for additional node information
DATA : t_node TYPE snodetext.
*Internal table and wa decl for nodes
DATA : it_node LIKE TABLE OF t_node INITIAL SIZE 0,
       wa_node LIKE t_node.
*Internal table and wa decl for Education table PA0022
DATA : it_0022 TYPE STANDARD TABLE OF pa0022 INITIAL SIZE 0,
       wa_0022 TYPE pa0022.
*Internal table and wa decl for text table t517x
DATA : it_517x TYPE STANDARD TABLE OF t517x INITIAL SIZE 0,
       wa_517x TYPE t517x.
*Internal table and wa decl for text table t517T
DATA : it_517t TYPE STANDARD TABLE OF t517t INITIAL SIZE 0,
       wa_517t TYPE t517t.
*Internal table and wa decl for text table t519T
DATA : it_519t TYPE STANDARD TABLE OF t519t INITIAL SIZE 0,
       wa_519t TYPE t519t.
*initialization event
INITIALIZATION.
*Start of selection  event
START-OF-SELECTION.
*Select the data for tree
  PERFORM fetch_data.
*Build the hierarchy for tree
  PERFORM build_hierarchy.
*Build Tree for display
  PERFORM build_tree.
*&--------------------------------------------------------------*
*&      Form  fetch_data
*&--------------------------------------------------------------*
*       text
*---------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*---------------------------------------------------------------*
FORM fetch_data .
*select data from PA0022
  SELECT * FROM pa0022 INTO CORRESPONDING FIELDS OF TABLE it_0022
   UP TO 50 ROWS.
*select data from T517x
  SELECT * FROM t517x INTO CORRESPONDING FIELDS OF TABLE it_517x 
   WHERE langu = 'E'.
*select data from T517T
  SELECT * FROM t517t INTO CORRESPONDING FIELDS OF TABLE it_517t 
   WHERE sprsl = 'E'.
*select data from T519t
  SELECT * FROM t519t INTO CORRESPONDING FIELDS OF TABLE it_519t 
   WHERE sprsl = 'E'.
ENDFORM.                    " fetch_data
*&----------------------------------------------------------------*
*&      Form  build_hierarchy
*&----------------------------------------------------------------*
*       text
*----------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------*
FORM build_hierarchy .
*Building the nodes and hierarchy for tree
  CLEAR : it_node[], wa_node.
  wa_node-type = 'T'.
  wa_node-name = 'Education'.
  wa_node-tlevel = '01'.
  wa_node-nlength = '15'.
  wa_node-color = '4'.
  wa_node-text = 'Infotype 0022'.
  wa_node-tlength ='20'.
  wa_node-tcolor = 3.
  APPEND wa_node TO it_node.
  CLEAR wa_node.
*Filling the values of internal table into tree
  LOOP AT it_0022 INTO wa_0022.
    wa_node-type = 'P'.
    wa_node-name = 'PERNR'.
    wa_node-tlevel = '02'.
    wa_node-nlength = '8'.
    wa_node-color = '1'.
    wa_node-text = wa_0022-pernr.
    wa_node-tlength ='20'.
    wa_node-tcolor = 4.
    APPEND wa_node TO it_node.
    CLEAR wa_node.
*Filling the text of T517t
    READ TABLE it_517t INTO wa_517t WITH KEY slart = wa_0022-slart.
    wa_node-type = 'P'.
    wa_node-name = wa_0022-slart.
    wa_node-tlevel = '03'.
    wa_node-nlength = '8'.
    wa_node-color = '1'.
    wa_node-text = wa_517t-stext.
    wa_node-tlength ='40'.
    wa_node-tcolor = 4.
    APPEND wa_node TO it_node.
    CLEAR wa_node.
*Filling the text of T519t
    READ TABLE it_519t INTO wa_519t WITH KEY slabs = wa_0022-slabs.
    wa_node-type = 'P'.
    wa_node-name = wa_0022-slabs.
    wa_node-tlevel = '04'.
    wa_node-nlength = '8'.
    wa_node-color = '2'.
    wa_node-text = wa_519t-stext.
    wa_node-tlength ='40'.
    wa_node-tcolor = 4.
    APPEND wa_node TO it_node.
    CLEAR wa_node.
*Filling the text of T517x
    READ TABLE it_517x INTO wa_517x WITH KEY faart = wa_0022-sltp1.
    wa_node-type = 'P'.
    wa_node-name = wa_0022-sltp1.
    wa_node-tlevel = '05'.
    wa_node-nlength = '8'.
    wa_node-color = '1'.
    wa_node-text = wa_517x-ftext.
    wa_node-tlength ='40'.
    wa_node-tcolor = 4.
    APPEND wa_node TO it_node.
    CLEAR wa_node.
    wa_node-type = 'P'.
    wa_node-name = wa_0022-zzper.
    wa_node-tlevel = '06'.
    wa_node-nlength = '8'.
    wa_node-color = '1'.
    wa_node-text = '% Completed'.
    wa_node-tlength ='15'.
    wa_node-tcolor = 4.
    APPEND wa_node TO it_node.
    CLEAR wa_node.
  ENDLOOP.
ENDFORM.                    " build_hierarchy
*&---------------------------------------------------------------*
*&      Form  build_tree
*&---------------------------------------------------------------*
*       text
*----------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------*
FORM build_tree .
*Fm for constructing the tree
  CALL FUNCTION 'RS_TREE_CONSTRUCT'
    TABLES
      nodetab = it_node.
  IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
*FM for displaying the tree
  CALL FUNCTION 'RS_TREE_LIST_DISPLAY'
    EXPORTING
      callback_program     = sy-repid
      check_duplicate_name = '1'
      color_of_node        = '4'
      color_of_mark        = '3'
      color_of_link        = '1'
      color_of_match       = '5'
      node_length          = 30
      text_length          = 75
      use_control          = 'L'.
ENDFORM.                    " build_tree

Output

 

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