WDA: How to programatically populate RadioButtonGroupByKey Without Creating Domain

Scenario:

I want to populate Radio Button Text programmatically in WebDynpro ABAP instead of binding Domain.

Steps:
I have a Context Element DEL_ITM in Component Controller i want to store the value in ROLE_TYP in DEL_ITM.

1. Created DEL_ITM in Component Controller as shown in Below Figure 1.1

Fig 1.1

2. Copied/mapped the Node DEL_ITM in Main view as shown in Fig:1.2

Fig 1.2

3. Added RadioButtonGroupByKey element in Mainview and binded SelectedKey Property with DEL_ITM.ROLE_TYP

4. Added a Code in ComponentController-WDDOINIT Method

 

METHOD wddoinit .

 

DATA: lr_node_info  TYPE REF TO if_wd_context_node_info,
        lo_nd_del_itm TYPE REF TO if_wd_context_node,
        ls_value      TYPE wdy_key_value,
        lt_value_set  TYPE wdy_key_value_table.

 

ls_value-key = 'A'.
  ls_value-value = 'All'.
  APPEND ls_value TO lt_value_set.
  ls_value-key = 'P'.
  ls_value-value = 'PO/PR Related Roles'.
  APPEND ls_value TO lt_value_set.

 

lo_nd_del_itm = wd_context->get_child_node( name = wd_this->wdctx_del_itm ).
  lr_node_info = lo_nd_del_itm->get_node_info( ).
  lr_node_info->set_attribute_value_set( name = 'ROLE_TYP' value_set = lt_value_set ).

 

ENDMETHOD.

Output: