Issue in value set Drop down for ALV in Webdynpro with Index

Question

Hi Experts,
We are unable to get the Drop down values in the ALV Table as shown below.
Code:
   DATA lo_nd_table TYPE REF TO if_wd_context_node.
    DATA lt_table TYPE wd_this->elements_table.
   DATA ls_table TYPE wd_this->element_table.
   DATA: lr_input TYPE REF TO cl_salv_wd_uie_input_field,
         lr_column TYPE REF TO cl_salv_wd_column,
         lt_node_info TYPE wdr_context_attr_info_map,
         ls_node_info TYPE wdr_context_attribute_info,
         lr_dropdown TYPE REF TO cl_salv_wd_uie_dropdown_by_idx,
         lr_info TYPE REF TO if_wd_context_node_info.
   DATA:lt_columns TYPE salv_wd_t_column_ref,
         ls_columns TYPE salv_wd_s_column_ref,
         lv_tabix TYPE sy-tabix,
         lv_count TYPE c.
   DATA: ls_valueset TYPE wdr_context_attr_value,
         lt_valueset TYPE wdr_context_attr_value_list.
   TYPES:BEGIN OF ty_name,
   name TYPE string,
   END OF ty_name.
   DATA: lt_name TYPE TABLE OF ty_name,
   ls_name TYPE ty_name.
*   navigate from <CONTEXT> to <TABLE> via lead selection
   lo_nd_table = wd_context->get_child_node( name = wd_this->wdctx_table ).
   SELECT * FROM zemp_table INTO CORRESPONDING FIELDS OF TABLE lt_table UP TO 10 ROWS.
   LOOP AT lt_table INTO ls_table.
     lv_tabix = sy-tabix.
     CLEAR: ls_table-leave_values.
     DO 1 TIMES.
       lv_count = lv_count + 1.
       CONCATENATE 'Open' lv_count INTO ls_valueset-value.
       CONCATENATE 'Open' lv_count INTO ls_valueset-text.
       APPEND ls_valueset TO ls_table-leave_values.
       CLEAR ls_valueset.
       CONCATENATE 'Approved' lv_count INTO ls_valueset-value.
       CONCATENATE 'Approved' lv_count INTO ls_valueset-text.
       APPEND ls_valueset TO ls_table-leave_values.
       CLEAR ls_valueset.
       CONCATENATE 'Rejected' lv_count INTO ls_valueset-value.
       CONCATENATE 'Rejected' lv_count INTO ls_valueset-text.
       APPEND ls_valueset TO ls_table-leave_values.
       CLEAR ls_valueset.
     ENDDO.
     MODIFY lt_table FROM ls_table INDEX lv_tabix TRANSPORTING leave_status leave_values.
   ENDLOOP.
   DATA lo_cmp_usage TYPE REF TO if_wd_component_usage.
   lo_cmp_usage =   wd_this->wd_cpuse_alv( ).
   IF lo_cmp_usage->has_active_component( ) IS INITIAL.
     lo_cmp_usage->create_component( ).
   ENDIF.
   DATA lo_interfacecontroller TYPE REF TO iwci_salv_wd_table .
   lo_interfacecontroller =   wd_this->wd_cpifc_alv( ).
   DATA lo_value TYPE REF TO cl_salv_wd_config_table.
   lo_value = lo_interfacecontroller->get_model(
*  lo_interfacecontroller->set_data( r_node_data = lo_nd_value_set ).
**Get the context node information
   lr_info = lo_nd_table->get_node_info( ).
   lt_node_info = lr_info->get_attributes( ).
   LOOP AT lt_node_info INTO ls_node_info.
     ls_name-name = ls_node_info-name.
     APPEND ls_name TO lt_name.
   ENDLOOP.
*Get all the columns to make row editable
   CALL METHOD lo_value->if_salv_wd_column_settings~get_columns
     RECEIVING
       value = lt_columns.
* Make the field dropdown
   CALL METHOD lo_value->if_salv_wd_column_settings~get_column
     EXPORTING
       id    = 'LEAVE_STATUS'
     RECEIVING
       value = lr_column.
* Create Object for dropdown
   CREATE OBJECT lr_dropdown
     EXPORTING
       selected_key_fieldname = 'LEAVE_STATUS'.
   CALL METHOD lr_dropdown->set_valueset_fieldname
     EXPORTING
       value = 'LEAVE_VALUES'.
   CALL METHOD lr_dropdown->set_type
     EXPORTING
       value = if_salv_wd_c_uie_drdn_by_index=>type_key_convert_to_value.
   CALL METHOD lr_column->set_cell_editor
     EXPORTING
       value = lr_dropdown.
*Set the table Editable
   lo_value->if_salv_wd_table_settings~set_read_only( value = abap_false ).
   lo_nd_table->bind_table( new_items = lt_table ).
Please suggest me where we are going wrong.
Thanks in advance...!!!
Best Regard's,
Shashi Kanth

Answer 1

Hi Shashi,
Your code looks okay.  Debug & check if everything goes fine and all the required list of values getting bound to node.
Is any code after this logic, which sets data to table ? if so, that logic is wiping out the drop down list values from context node.
Final check point:
Read the context node 'TABLE' and fetch records into internal table in WDDOMODIFYVIEW( ) method to make sure that, every row of your table contains the drop down list entries in "LEAVE_VALUES" attribute
Hope this helps you.
Regards,
Rama