Error "Lead selection not set for context node"

Question

Hi everyone,
I've got a Tree control in WebDynpro ABAP and I've implemented an "expand all" button.
Here's the coding:
METHOD expand_node_rec.
  DATA lo_el_child TYPE REF TO if_wd_context_element.
  DATA lo_node_children TYPE  wdr_context_child_map.
  DATA wa_lo_node_children LIKE LINE OF lo_node_children.
  DATA lo_nd_child TYPE REF TO if_wd_context_node.
  DATA lo_kschl TYPE klschl.
  DATA lv_has_children TYPE boolean.
  lo_el_child = node->get_element( ).
  lo_node_children = node->get_child_nodes( ).
  node->get_attribute( EXPORTING name = 'KSCHL' IMPORTING value = lo_kschl ).
  node->get_attribute( EXPORTING name = 'HAS_CHILDREN' IMPORTING value = lv_has_children ).
  IF lv_has_children = abap_true.
    node->set_attribute( name = 'IS_EXPANDED' value = abap_true ).
  ENDIF.
  LOOP AT lo_node_children INTO wa_lo_node_children.
    lo_nd_child = wa_lo_node_children-node.
    me->expand_node_rec( node = lo_nd_child  ).
  ENDLOOP.
ENDMETHOD.
However I'm getting the error above: "Lead selection not set for context node".
Any suggestions?
Edited by: DEVELOPMENT THEMIS on Jul 7, 2011 6:34 PM

Answer 1

hi developement Themis,
I think u didn't diclare "node" as context node. So declare it as a context node before using as a context node..as below
DATA node  TYPE REF TO if_wd_context_node.
or u can use  "lo_nd_child " as ur context node in ur program in place of "node"
then I think this error will be removed.
thanks,
simadri