Error in simple Application

Question

Hi all,
    since i am relatively new to this field, i created a simple application which takes in carrid and displays the sflight details...i too have binded the table but whenever i try to test the application it displays the following error_..."Adapter error in INPUT_FIELD "INPUT_CARRID" of view "Z_TEST_DETAILS.MAIN": Context binding for property VALUE cannot be resolved: The MAIN.1.SFLIGHT1 node does not contain any elements "*_
i even cannot enter debug mode because it dumps in the beginning.Could you please help me out with this.
Thanks and regards,
Urbashi

Answer 1

hi Abhi...
dat problem is solved bt nw after entering the carrid it again dumps saying "Number of Elements of the Collection of Node MAIN.1.SFLIGHT1 Violates the Cardinality. "
i have set the cardinality to 1-n.
the code written is:
data itab_sflight type standard table of  sflight.
    DATA lo_nd_sflight1 TYPE REF TO if_wd_context_node.
    DATA lo_el_sflight1 TYPE REF TO if_wd_context_element.
    DATA ls_sflight1 TYPE wd_this->Element_sflight1.
    DATA lv_carrid TYPE wd_this->Element_sflight1-carrid.
  navigate from <CONTEXT> to <SFLIGHT1> via lead selection
    lo_nd_sflight1 = wd_context->get_child_node( name = wd_this->wdctx_sflight1 ).
  @TODO handle non existant child
  IF lo_nd_sflight1 IS INITIAL.
  ENDIF.
  get element via lead selection
    lo_el_sflight1 = lo_nd_sflight1->get_element( ).
  alternative access  via index
  lo_el_sflight1 = lo_nd_sflight1->get_element( index = 1 ).
  @TODO handle not set lead selection
    IF lo_el_sflight1 IS INITIAL.
    ENDIF.
  get single attribute
    lo_el_sflight1->get_attribute(
      EXPORTING
        name =  `CARRID`
      IMPORTING
        value = lv_carrid ).
select * from sflight into table itab_sflight
  where carrid = 'lv_carrid'.
lo_nd_sflight1 = wd_context->get_child_node( name = wd_this->wdctx_SFLIGHT1 ).
lo_nd_sflight1->bind_table( itab_sflight ).
Regards,
Urbashi