Expand a node on a tree after a drop

[Former Member]

Hi,

after a node has been added to a tree (reagged from another tree) how can i expand the node that the new node has been added to.

I have tried CALL METHOD users_tree->expand_node

EXPORTING

node_key = node-relatkey.

But this is not working, i wonder where this has to be called at what point i mean?

[Former Member]

Hi,

after a node has been added to a tree (reagged from another tree) how can i expand the node that the new node has been added to.

I have tried CALL METHOD users_tree->expand_node

EXPORTING

node_key = node-relatkey.

But this is not working, i wonder where this has to be called at what point i mean?

[uwe_schieferstein]

Hello Kieran

Please copy the sample report <b>SAPSIMPLE_TREE_DRAG_DROP_DEMO</b> (transaction SE83, folder <i>Controls -> Trees</i>) and make the following changes in the event handler method <b>HANDLE_RIGHT_TREE_DROP</b>:

  METHOD handle_right_tree_drop.
    DATA: LOCAL_NODE_TABLE TYPE NODE_TABLE_TYPE,
          new_NODE TYPE MTREESNODE,
          dataobj type ref to lcl_dragdropdataobject.

     " get information about the dragged object:
     " the data object

...


     CALL METHOD g_right_tree->expand_node
       EXPORTING
         node_key            = node_key
*         LEVEL_COUNT         =
*         EXPAND_SUBTREE      =
       EXCEPTIONS
         FAILED              = 1
         ILLEGAL_LEVEL_COUNT = 2
         CNTL_SYSTEM_ERROR   = 3
         NODE_NOT_FOUND      = 4
         CANNOT_EXPAND_LEAF  = 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.

  ENDMETHOD.

Now run the report and close the folder of the right tree. <i>Drag&drop</i> a node from the left to the right tree and the folder in the right tree will be expanded.

Regards

Uwe