Double click on the node,ALV tree, subscreen

Question

Hi,
I have a small requirement in ALV Tree
left side i get a tree and when i double click on one of it , i'm trying to display the subscreen. even though i am setting the paramaters to the screen but i'm unable to get those values in the subscreen.
example
Name        Description                                                subscreen 0101
xyz           xyz desc (double click on this)                  name    = XYZ
ABC         abs desc                                                      descrip = xyz desc
This is what the requirement is:
Please help me out with the solution.
Bhavana

Answer 1

Hi Bhavana,
Register your double click event in the ALV Tree program. Then call the respective subscreen using sy-ucomm value.
IF NOT r_ucomm IS INITIAL.
    CASE r_ucomm.
      WHEN '&F03'.
        SET SCREEN 100.
        LEAVE SCREEN.
endif.
Refer the below code for setting the registering the event.
  CALL METHOD tree->get_registered_events
    IMPORTING
      events = l_events_s.
  l_event-eventid = cl_gui_column_tree=>eventid_item_double_click.
  APPEND l_event TO l_events_s.
  CALL METHOD tree->set_registered_events
    EXPORTING
      events                    = l_events_s
    EXCEPTIONS
      cntl_error                = 1
      cntl_system_error         = 2
      illegal_event_combination = 3.
  CREATE OBJECT l_events_receiver.
  SET HANDLER l_events_receiver->handle_item_click FOR tree.
CLASS lcl_events_receiver DEFINITION.                       "#EC *
  PUBLIC SECTION.
    METHODS:
    handle_item_click FOR EVENT item_double_click OF cl_gui_alv_tree
        IMPORTING node_key fieldname.
ENDCLASS.                    "lcl_handle_events DEFINITION
CLASS lcl_events_receiver IMPLEMENTATION.
  METHOD handle_item_click.
    PERFORM employee_data USING node_key fieldname.
    CALL SCREEN 300.
  ENDMETHOD.                    "HANDLE_ITEM_DOUBLE_CLICK
ENDCLASS.                    "lcl_events_receiver IMPLEMENTATION
Thanks.
Ganesh R K
Edited by: Ganesh.rk83 on Jun 23, 2011 11:21 AM