Problems showing Values in a DROPDOWNBYINDEX

Question

Hello together,
I've got a problem of showing values in a Drop Down  Box.
I've got 1 Dropdown box, 1 button and a text field. In the text field i'm wirting a carrid for example AC.
If i press the button in the Drop down box should show the name to the corresponding carrid for example Air Canada.
this is my code till yet. But i don't see what's missing.
Maybe anybody can help?
  Data: context_node type ref to if_wd_context_node.
  Data: it_carriers TYPE STANDARD TABLE OF scarr,
        wa_carriers LIKE LINE OF it_carriers,
        wa_carrid(3) TYPE c.
  context_node = wd_context->get_child_node( 'DROPDOWN_CARRIERS' ).
  context_node->get_attribute( exporting Name = 'CARRID' importing value = wa_carrid ).
  select * from scarr
    INTO wa_carriers
    WHERE carrid = wa_carrid.
    APPEND wa_carriers TO it_carriers.
  ENDSELECT.
  context_node = wd_context->get_child_node( name = 'CARRID').
  context_node->BIND_TABLE( new_items = it_carriers ).

Answer 1

Get the selected row by using code wizard and use the values of the structure whereever you want. Refer to the below code:
Suppose I have a Node NODE_OUTPUT and binded with my table UI element. We need to get the selected row (ls_node_output) in my Button UI event handler method as below:
    DATA lo_nd_node_output TYPE REF TO if_wd_context_node.
    DATA lo_el_node_output TYPE REF TO if_wd_context_element.
    DATA ls_node_output TYPE wd_this->element_node_output.
  navigate from <CONTEXT> to <NODE_OUTPUT> via lead selection
    lo_nd_node_output = wd_context->get_child_node( name = wd_this->wdctx_node_output ).
  get element via lead selection
    lo_el_node_output = lo_nd_node_output->get_element( ).
  get all declared attributes
    lo_el_node_output->get_static_attributes(
      IMPORTING
        static_attributes = ls_node_output ).