Populating dropdown

Question

Hi,
I have a view in which there are fields with the dropdown(Year, month and date). I have to populate them , please let me know how to do that. Any pointers will be of great help.
Regards,
Ashutosh

Answer 1

HI,
You can either have Drop down by key or dropdown by index.
Following are the ways to populate them :
DropDownBy Key :
     Here we have two things Value and a Key. Value is shown in the Drop down.
     Node used is For_Drop and Attribute is u2018Drop_Keyu2019.
method WDDOINIT .
  DATA : node_info TYPE REF TO if_wd_context_node_info,
         value1 TYPE wdy_key_value,
         set TYPE wdy_key_value_table,
         k1 type string value 'M',
         v1 type string value 'MAGO',
         k2 type string value 'S',
         v2 type string value 'Saurav'.
  value1-key = k1.
  value1-value = v1.
  APPEND value1 to set.
  value1-key = k2.
  value1-value = v2.
   APPEND value1 to set.
node_info = wd_context->get_node_info( ).
node_info = node_info->get_child_node('FOR_DROP').
node_info->set_attribute_value_set( name = 'DROP_KEY'   value_set = set ).
endmethod.
DropDown By Index:
     Value passed into internal table.
     Internal table is finally binded with the corresponding node(Context)
method WDDOINIT .
  data : it_table type STANDARD TABLE OF sflight.
    DATA lo_nd_cn_drpindex TYPE REF TO if_wd_context_node.
    DATA lo_el_cn_drpindex TYPE REF TO if_wd_context_element.
    DATA ls_cn_drpindex TYPE wd_this->element_cn_drpindex.
  navigate from <CONTEXT> to <CN_DRPINDEX> via lead selection
    lo_nd_cn_drpindex = wd_context->get_child_node( name = wd_this->wdctx_cn_drpindex ).
select carrid from sflight into CORRESPONDING FIELDS OF TABLE it_table.
  lo_nd_cn_drpindex->bind_table( it_table ).
endmethod.
Dropdown is binded with CN_DRPINDEX context node.