ALV_TREE with item_double_click

Question

Hi Experts
I have developed a report which has to display the balance sheet in the tree format. I have done the code for it, now I am have stuck -up with the double click on the item. I have coded like below;
class LCL_APPLICATION definition.
PUBLIC SECTION.
   METHODS:
     HANDLE_NODE_DOUBLE_CLICK
       FOR EVENT NODE_DOUBLE_CLICK
       OF cl_gui_alv_tree
       IMPORTING NODE_KEY,
     HANDLE_ITEM_DOUBLE_CLICK
       FOR EVENT ITEM_DOUBLE_CLICK
       OF cl_gui_alv_tree
       IMPORTING NODE_KEY
                 FIELDNAME.
endclass.
class LCL_APPLICATION implementation.
METHOD  HANDLE_NODE_DOUBLE_CLICK.
   perform disp_node_details using node_key.
  ENDMETHOD.                    "HANDLE_NODE_DOUBLE_CLICK
  METHOD  HANDLE_ITEM_DOUBLE_CLICK.
    G_NODE_KEY = NODE_KEY.
     w_field = FIELDNAME.
     PERFORM disp_2nd_list USING G_NODE_KEY w_field.
  ENDMETHOD.                    "HANDLE_ITEM_DOUBLE_CLICK
form register_events .
DATA: lt_events TYPE cntl_simple_events,
        l_event TYPE cntl_simple_event,
        l_event_receiver TYPE REF TO LCL_APPLICATION.
call method alv_tree->get_registered_events
      importing events = lt_events.
LOOP AT lt_events INTO l_event.
  l_event-appl_event = 'X'.
  modify lt_events FROM l_event TRANSPORTING appl_event.
  CLEAR l_event.
ENDLOOP.
* register events on frontend
  CALL METHOD alv_tree->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.
  CREATE OBJECT l_event_receiver.
  SET HANDLER  l_event_receiver->HANDLE_NODE_DOUBLE_CLICK FOR alv_tree.
  SET HANDLER  l_event_receiver->HANDLE_ITEM_DOUBLE_CLICK FOR alv_tree.
endform.                    " register_events
In this way both events are not triggering and if I try below method, the hirarchey is not displaying in the output.
only the top nodes are displaying and the events are triggering. The second method  in the form register_events is like below
l_event-eventid = cl_gui_column_tree=>eventid_node_double_click.
   l_event-appl_event = 'X'.
    append l_event to lt_events.
l_event-eventid=cl_gui_column_tree=>eventid_node_double_click
l_event-appl_event = 'X'
append l_event to it_events
Edited by: Praveen Kumar on Nov 17, 2009 8:22 AM

Answer 1

hi
(also check u have refresh the field)
Check the demo program,In this double click the data fields it will display some field in screen,You can check it
BCALV_GRID_DND_TREE
Thanks
Edited by: dharma raj on Jun 17, 2009 7:41 PM