Display web dynpro ALV report select options to resict output results

  CONSTANTS: c_yes TYPE abap_bool VALUE 'X',
             c_no TYPE abap_bool VALUE ' '.
  DATA: lt_range_table TYPE REF TO data,
        rt_range_table TYPE REF TO data,
        read_only      TYPE abap_bool,
        type_name      TYPE string.
  DATA: l_ref_cmp_usage TYPE REF TO if_wd_component_usage.
* Set up selection area
  l_ref_cmp_usage = wd_this->wd_cpuse_select_options( ).
  IF l_ref_cmp_usage->has_active_component( ) IS INITIAL.
    l_ref_cmp_usage->create_component( ).
  ENDIF.
  wd_this->m_wd_select_options = wd_this->wd_cpifc_select_options( ).
  wd_this->m_handler = wd_this->m_wd_select_options->init_selection_screen( ).
  lt_range_table =
  wd_this->m_handler->create_range_table( i_typename = 'S_CARR_ID' ).
  wd_this->m_handler->add_selection_field( i_id = 'S_CARR_ID'
                                           it_result = lt_range_table
                                           i_read_only = abap_false ).
  wd_this->m_handler->set_global_options( i_display_btn_cancel = abap_false
                                          i_display_btn_check = abap_false
                                          i_display_btn_reset = abap_false
                                          i_display_btn_execute = abap_false ).

 DATA: node_flights TYPE REF TO if_wd_context_node,
        rt_carrid TYPE REF TO data,
        rt_connid TYPE REF TO data.
* create table based on context structure
  data: it_scarr type STANDARD TABLE OF if_view1=>element_ALV_TABLE,
        wa_scarr like line of it_scarr.
  FIELD-SYMBOLS:  TYPE table,
                  TYPE table.
  rt_carrid = wd_this->m_handler->get_range_table_of_sel_field(
  i_id = 'S_CARR_ID' ).
  ASSIGN rt_carrid->* TO .
*select data from required SAP table
  select *
    from scarr
    into table it_scarr
   WHERE carrid IN .
  node_flights = wd_context->get_child_node( name = 'ALV_TABLE' ).
  node_flights->bind_elements( it_scarr  ).