ALV tree get selected checkbox

[former_member182670]

Hi

I have an ALV report which uses cl_gui_alv_tree as display control.

In this report some items in hierarchy are marked as checkboxes with following code:

ls_item_layout-fieldname = '&Hierarchy'.

ls_item_layout-class = cl_gui_column_tree=>item_class_checkbox.

ls_item_layout-editable = 'X'.

APPEND ls_item_layout TO lt_item_layout.

CALL METHOD g_alv_tree->add_node

EXPORTING

i_relat_node_key = p_node_key2

i_relationship = cl_gui_column_tree=>relat_last_child

i_node_text = lv_node_text

is_outtab_line = ls_data

it_item_layout = lt_item_layout.

They apear in report as checkboxes but I cannot get their values in PAI module.

I need this to perform some operations after user clicks a button on application toolbar.

When I call method

CALL METHOD g_alv_tree->GET_CHECKED_ITEMS

IMPORTING ET_CHECKED_ITEMS = lt_nodes.

it returns an empty table even if some of items were checked.

[Former Member · Accepted solution]

Hi Tomasz,

Please check whether you register the events or not.

  * define the events which will be passed to the backend
  DATA: LT_EVENTS TYPE CNTL_SIMPLE_EVENTS,
        L_EVENT TYPE CNTL_SIMPLE_EVENT.

* define the events which will be passed to the backend
  L_EVENT-EVENTID = CL_GUI_COLUMN_TREE=>EVENTID_EXPAND_NO_CHILDREN.
  APPEND L_EVENT TO LT_EVENTS.
  L_EVENT-EVENTID = CL_GUI_COLUMN_TREE=>EVENTID_CHECKBOX_CHANGE.
  APPEND L_EVENT TO LT_EVENTS.
  L_EVENT-EVENTID = CL_GUI_COLUMN_TREE=>EVENTID_HEADER_CONTEXT_MEN_REQ.
  APPEND L_EVENT TO LT_EVENTS.
  L_EVENT-EVENTID = CL_GUI_COLUMN_TREE=>EVENTID_NODE_CONTEXT_MENU_REQ.
  APPEND L_EVENT TO LT_EVENTS.
  L_EVENT-EVENTID = CL_GUI_COLUMN_TREE=>EVENTID_ITEM_CONTEXT_MENU_REQ.
  APPEND L_EVENT TO LT_EVENTS.
  L_EVENT-EVENTID = CL_GUI_COLUMN_TREE=>EVENTID_HEADER_CLICK.
  APPEND L_EVENT TO LT_EVENTS.
  L_EVENT-EVENTID = CL_GUI_COLUMN_TREE=>EVENTID_ITEM_KEYPRESS.
  APPEND L_EVENT TO LT_EVENTS.

  CALL METHOD TREE1->SET_REGISTERED_EVENTS
    EXPORTING
      EVENTS = LT_EVENTS
    EXCEPTIONS
      CNTL_ERROR                = 1
      CNTL_SYSTEM_ERROR         = 2
      ILLEGAL_EVENT_COMBINATION = 3.
  IF SY-SUBRC <> 0.
    MESSAGE X208(00) WITH 'ERROR'.                          "#EC NOTEXT
  ENDIF.

* set Handler
  DATA: L_EVENT_RECEIVER TYPE REF TO LCL_TREE_EVENT_RECEIVER.
  CREATE OBJECT L_EVENT_RECEIVER.
  SET HANDLER L_EVENT_RECEIVER->HANDLE_NODE_CTMENU_REQUEST
                                                        FOR TREE1.
  SET HANDLER L_EVENT_RECEIVER->HANDLE_NODE_CTMENU_SELECTED
                                                        FOR TREE1.
  SET HANDLER L_EVENT_RECEIVER->HANDLE_ITEM_CTMENU_REQUEST
                                                        FOR TREE1.
  SET HANDLER L_EVENT_RECEIVER->HANDLE_ITEM_CTMENU_SELECTED
                                                        FOR TREE1.
 
  

then you can directly call the below method when user press on some button in PAI.

  DATA: LS_FINAL1 TYPE G_FINAL.
  DATA: V_ANS TYPE C.
  DATA: LT_SELECTED_NODE TYPE LVC_T_CHIT,
        LS_SELECTED_NODE TYPE LVC_S_CHIT.

* Get checked entries from the tree
  CALL METHOD TREE1->GET_CHECKED_ITEMS
     IMPORTING ET_CHECKED_ITEMS = LT_SELECTED_NODE.

  IF NOT LT_SELECTED_NODE[] IS INITIAL.
* Popup for confirmation
    CALL FUNCTION 'SWO_POPUP_TO_CONFIRM'
         EXPORTING
              TEXT   = 'Do you want to delete record(s)?'(016)
              TITLE  = 'Delete record(s)'(017)
         IMPORTING
              ANSWER = V_ANS.

Hope this will help you.

Thanks&Regards,

Siri.

[Former Member · Accepted solution]

now u can read it

 
* define the events which will be passed to the backend 
DATA: LT_EVENTS TYPE CNTL_SIMPLE_EVENTS, 
L_EVENT TYPE CNTL_SIMPLE_EVENT. 
* define the events which will be passed to the backend
L_EVENT-EVENTID = CL_GUI_COLUMN_TREE=>EVENTID_EXPAND_NO_CHILDREN. 
APPEND L_EVENT TO LT_EVENTS. 
L_EVENT-EVENTID = CL_GUI_COLUMN_TREE=>EVENTID_CHECKBOX_CHANGE. 
APPEND L_EVENT TO LT_EVENTS.
L_EVENT-EVENTID = CL_GUI_COLUMN_TREE=>EVENTID_HEADER_CONTEXT_MEN_REQ. 
APPEND L_EVENT TO LT_EVENTS. 
L_EVENT-EVENTID = CL_GUI_COLUMN_TREE=>EVENTID_NODE_CONTEXT_MENU_REQ. 
APPEND L_EVENT TO LT_EVENTS. 
L_EVENT-EVENTID = CL_GUI_COLUMN_TREE=>EVENTID_ITEM_CONTEXT_MENU_REQ. 
APPEND L_EVENT TO LT_EVENTS. 
L_EVENT-EVENTID = CL_GUI_COLUMN_TREE=>EVENTID_HEADER_CLICK. 
APPEND L_EVENT TO LT_EVENTS. 
L_EVENT-EVENTID = CL_GUI_COLUMN_TREE=>EVENTID_ITEM_KEYPRESS. 
APPEND L_EVENT TO LT_EVENTS. 
CALL METHOD TREE1->SET_REGISTERED_EVENTS 
EXPORTING EVENTS = LT_EVENTS
EXCEPTIONS CNTL_ERROR = 1 
CNTL_SYSTEM_ERROR = 2 
ILLEGAL_EVENT_COMBINATION = 3.

IF SY-SUBRC = 0.
MESSAGE X208(00) WITH 'ERROR'. "#EC 
NOTEXT ENDIF. 
* set Handler 
DATA: L_EVENT_RECEIVER TYPE REF TO LCL_TREE_EVENT_RECEIVER. 
CREATE OBJECT L_EVENT_RECEIVER. 
SET HANDLER L_EVENT_RECEIVER->HANDLE_NODE_CTMENU_REQUEST FOR TREE1. 
SET HANDLER L_EVENT_RECEIVER->HANDLE_NODE_CTMENU_SELECTED FOR TREE1. 
SET HANDLER L_EVENT_RECEIVER->HANDLE_ITEM_CTMENU_REQUEST FOR TREE1. 
SET HANDLER L_EVENT_RECEIVER->HANDLE_ITEM_CTMENU_SELECTED FOR TREE1. 

then you can directly call the below method when user press on some button in PAI.

 
DATA: LS_FINAL1 TYPE G_FINAL. 
DATA: V_ANS TYPE C. 
DATA: LT_SELECTED_NODE TYPE LVC_T_CHIT, 
LS_SELECTED_NODE TYPE LVC_S_CHIT. 
* Get checked entries from the tree 
CALL METHOD TREE1->GET_CHECKED_ITEMS 
IMPORTING ET_CHECKED_ITEMS = LT_SELECTED_NODE. 

IF NOT LT_SELECTED_NODE[] IS INITIAL. 

* Popup for confirmation 
CALL FUNCTION 'SWO_POPUP_TO_CONFIRM' EXPORTING 
TEXT = 'Do you want to delete record(s)?'(016) 
TITLE = 'Delete record(s)'(017) 
IMPORTING 
ANSWER = V_ANS. 

[Former Member · Accepted solution]

Ok it follow the way i acted in order to read the content that as been check in the PAI module.

  DATA: lt_selected_node TYPE lvc_t_chit,
  ls_selected_node TYPE lvc_s_chit,
  wa_selected_node TYPE lvc_s_chit,
  e_outtab_line TYPE " put here the TYPE of your output table 
                                  " the same you assigned to the it_outtab
                                 ." in the method tree1->set_table_for_first_display

* Get checked entries from the tree
  CALL METHOD tree1->get_checked_items
    IMPORTING
      et_checked_items = lt_selected_node.


* now that you have the codes of the nodes
* you might want to get the content of the correspondent lines
* i did it with the code bellow

loop at lt_selected_node into wa_selected_node.
 
* this method gets the line correspondent to a node code

CALL METHOD tree1->get_outtab_line
    EXPORTING
      i_node_key    = wa_selected_node-nodekey
    IMPORTING
      e_outtab_line = e_outtab_line.

move-CORRESPONDING e_outtab_line to it_transfer_table.
APPEND it_transfer_table.


  ENDLOOP.

* that's it
* now you have table with the checked items 

hope this helps some of you!!

if there is a better way of doing this post reply tks