Drop down by index in webdynpro

Question

I am using a drop down by index element in my webdynpro ABAP screen.
I populate this drop down by fetching values through a remote-enabled function module. How do i set one particular value as default after fetching these values. ?
I am getting the currency keys as the list of values and want to show a particular value when the view is first shown. How is this possible?
regards,
Priyank

Answer 1

Hi Priyank,
    I have the sample code where index is used.
    This code is used for radiobutton group by index.
    You can use same logic in your requirement.
data:
    text    type string,
    element type ref to if_wd_context_element,
    index   type string.
  DATA:
    node_check                          TYPE REF TO if_wd_context_node,
    elem_check                          TYPE REF TO if_wd_context_element,
    stru_check                          TYPE if_start_ior=>element_check ,
    item_check_attribute                LIKE stru_check-check_attribute.
  element = wd_context->get_lead_selection( ).
  index = wdevent->get_string( 'INDEX' ).
Case when Overhead option is selected
navigate from <CONTEXT> to <CHECK> via lead selection
  node_check = wd_context->get_child_node( name = if_start_ior=>wdctx_check ).
get element via lead selection
  elem_check = node_check->get_element(  ).
get single attribute
  elem_check->get_attribute(
    EXPORTING
      name =  `CHECK_ATTRIBUTE`
    IMPORTING
      value = item_check_attribute ).
if index EQ 2.
elem_check->set_attribute( name = 'CHECK_ATTRIBUTE' value = Abap_true ).
endif.
if index EQ 1.
elem_check->set_attribute( name = 'CHECK_ATTRIBUTE' value = Abap_false ).
endif.
Hope this answer will help you.
Cheers,
Darshna.