Handle double click for alv_tree?

Question

hej out there,
as you may remember I'm doing some updates to UIs.
Somehow it should be possible to make alv_tree handle double_click events, shouldn't it?
I don't know how to go on. I found some methods but they don't work properly (or as expected).
I know there are methods to do so with simple_tree... hmpf. But it would be the worst solution to switch technique to simple_tree.
regards and thanks in advance,
BS

Answer 1

Hej,
I gotta do it using alv-tree.
And I tried it the following way (just did a short and quick example which remains fundamentally the same to my old report).
But the way it's done in the following code snipped it won't work... if decomment
*    event-eventid = cl_gui_alv_tree=>eventid_node_double_click .
*    event-appl_event = ' ' .
*    APPEND event TO events .
the message will be raised telling node double click has been handled... but not a single node can be expanded anymore.
CLASS event DEFINITION.
  PUBLIC SECTION.
    METHODS:
      handle_node_dblclick
        FOR EVENT node_double_click
               OF cl_gui_alv_tree
        IMPORTING node_key.
ENDCLASS.
CLASS event IMPLEMENTATION.
  METHOD handle_node_dblclick.
    DATA:
      l_carrid TYPE spfli-carrid,
      l_connid TYPE spfli-connid.
    l_carrid = node_key(2).
    l_connid = node_key+2(4).
    MESSAGE i001(ZBOBOPP1) WITH 'handled double click'
                                l_carrid
                                l_connid .
  ENDMETHOD.
ENDCLASS.
  DATA:
    ctrlcontainer TYPE REF TO cl_gui_docking_container ,
    treectrl      TYPE REF TO cl_gui_alv_tree ,
    evt           TYPE REF TO event ,
    tblpointer    TYPE TABLE OF scustom ,
    fieldcat      TYPE lvc_t_fcat ,
    hierhead      TYPE treev_hhdr ,
    events        TYPE cntl_simple_events ,
    event         TYPE cntl_simple_event .
MODULE status_0100 OUTPUT.
  SET PF-STATUS 'S_100'.
  SET TITLEBAR 'T_100'.
  IF ctrlcontainer IS INITIAL .
    CREATE OBJECT evt.
    CREATE OBJECT ctrlcontainer
      EXPORTING
        extension = 900 .
    CREATE OBJECT treectrl
      EXPORTING
        parent         = ctrlcontainer
        no_html_header = 'X' .
    PERFORM adjcolarea
      CHANGING fieldcat.
    hierhead-heading   = 'Land/Kundenname/Kunde'(300).
    hierhead-tooltip   = 'Name des Kunden'(400).
    hierhead-width     = 45.
    hierhead-width_pix = space.
    CALL METHOD treectrl->set_table_for_first_display
      EXPORTING
        is_hierarchy_header = hierhead
      CHANGING
        it_outtab           = tblpointer
        it_fieldcatalog     = fieldcat.
*    event-eventid = cl_gui_alv_tree=>eventid_node_double_click .
*    event-appl_event = ' ' .
*    APPEND event TO events .
*    CALL METHOD treectrl->set_registered_events
*      EXPORTING
*        events = events .
    SET HANDLER evt->handle_node_dblclick FOR treectrl .
    PERFORM select_data_and_fill_col_tree .
    CALL METHOD treectrl->frontend_update .
    CALL METHOD cl_gui_cfw=>flush .
  ENDIF .
ENDMODULE .                 " STATUS_0100  OUTPUT
Thanks,
BS
Message was edited by: Boris Schoessow