ALV tree in docking container

[Former Member]

i am trying to call a docking container (on hotspot click of ALV.-> Reuse_alv_grid_display).

And a alv tree is to be displayed in docking container.

I have wrote the entire code and there is no error is thrown by the system, but docking container displayed.

I am posting entire code .Please let me know where i am mistaken.

check r_ucomm eq '&IC1'."when user double click on any cell of ALV.
   CASE rs_selfield-SEL_TAB_FIELD.
     WHEN 'I_MKPF-WERKS'.
       perform create_dock.
       perform create_alv_tree.
 *           WHEN .
 *           WHEN OTHERS.
   ENDCASE. 

FORM CREATE_DOCK ."docking container is created 
   check obj1 is initial.
   CREATE OBJECT OBJ1
     EXPORTING
 *    PARENT                      =
     REPID                       = sy-repid
     DYNNR                       = sy-dynnr
       SIDE                        = obj1->DOCK_AT_bottom
     EXTENSION                   = 500
     EXCEPTIONS
       CNTL_ERROR                  = 1
       CNTL_SYSTEM_ERROR           = 2
       CREATE_ERROR                = 3
       LIFETIME_ERROR              = 4
       LIFETIME_DYNPRO_DYNPRO_LINK = 5
       others                      = 6
       .
   IF SY-SUBRC <> 0.
     MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
                WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
   ENDIF.
 ENDFORM.          

FORM CREATE_ALV_TREE . "alv Tree 
create object tree
     exporting
         parent              = obj1
         node_selection_mode = cl_gui_column_tree=>node_sel_mode_single
         item_selection      = 'X'
         no_html_header      = 'X'
         no_toolbar          = ''
     exceptions
         cntl_error                   = 1
         cntl_system_error            = 2
         create_error                 = 3
         lifetime_error               = 4
         illegal_node_selection_mode  = 5
         failed                       = 6
         illegal_column_name          = 7.
   if sy-subrc <> 0.
     message x208(00) with 'ERROR'.                          "#EC NOTEXT
   endif.


   data l_hierarchy_header type treev_hhdr.
   perform build_hierarchy_header changing l_hierarchy_header.

   IF gt_fieldcatalog[] is   initial.
     perform buildfield_cat using 'TRNTYP' 'TRNTYP' .
     perform buildfield_cat using 'EXDAT' 'Excise Doc' .
     perform buildfield_cat using 'WERKS' 'Excise Doc' .
     perform buildfield_cat using 'EXNUM' 'Excise Doc' .
     perform buildfield_cat using 'EXYEAR' 'Excise Doc' .
     perform buildfield_cat using 'MATNR' 'Excise Doc' .
     perform buildfield_cat using 'RITEM1' 'Excise Doc' .
     perform buildfield_cat using 'RITEM2' 'Excise Doc' .
     perform buildfield_cat using 'MAKTX' 'Excise Doc' .
     perform buildfield_cat using 'REMOVAL' 'Excise Doc' .
     perform buildfield_cat using 'MEINS' 'Excise Doc' .
     perform buildfield_cat using 'EXBAS' 'Excise Doc' .
     perform buildfield_cat using 'EXBED' 'Excise Doc' .

   endif.

call method tree->set_table_for_first_display
     EXPORTING
 *      i_structure_name    = 'SFLIGHT'
       is_hierarchy_header = l_hierarchy_header
     CHANGING
       it_outtab           = t_J_1IEXCDTL[] "table must be empty !
       it_fieldcatalog     = gt_fieldcatalog.


perform create_hierarchy.
call method tree->frontend_update.

FORM CREATE_HIERARCHY .
sort IJ_1IEXCDTL by chapid matnr.
   LOOP AT IJ_1IEXCDTL into WJ_1IEXCDTL.
     on change of WJ_1IEXCDTL-chapid.
       perform add_carrid_line using    WJ_1IEXCDTL
                                              ''
                                    changing l_carrid_key.
     endon.
     on change of WJ_1IEXCDTL-matnr.
       perform add_complete_line using  WJ_1IEXCDTL"last complete line.
                                        l_carrid_key
                               changing l_last_key.

     endon.
   ENDLOOP.
endform.

form add_carrid_line using     WJ_1IEXCDTL1 type J_1IEXCDTL
                                p_relat_key type lvc_nkey
                      changing  p_node_key type lvc_nkey.

   data: l_node_text type lvc_value.

   l_node_text =   WJ_1IEXCDTL1-chapid.
   call method tree->add_node
     EXPORTING
       i_relat_node_key = p_relat_key
       i_relationship   = cl_gui_column_tree=>relat_last_child
       i_node_text      = l_node_text
       is_outtab_line   = WJ_1IEXCDTL
     IMPORTING
       e_new_node_key   = p_node_key.
 endform.                    "add_carrid_line

form add_complete_line using   WJ_1IEXCDTL2 type J_1IEXCDTL
                              p_relat_key type lvc_nkey
                    changing  p_node_key type lvc_nkey.

   data: l_node_text type lvc_value.
   write WJ_1IEXCDTL2-matnr to l_node_text .

   call method tree->add_node
     EXPORTING
       i_relat_node_key = p_relat_key
       i_relationship   = cl_gui_column_tree=>relat_last_child
       is_outtab_line   = WJ_1IEXCDTL2
       i_node_text      = l_node_text
     IMPORTING
       e_new_node_key   = p_node_key.

 endform.                    "add_complete_line

[Former Member]

This is the ALV and i want docking container containing alv tree to be displayed with the details of this alv

at bottom of screen.