Radio button not showing in UI

Hi all,

I am trying to put a simple radio button to the configuration. I have created a new attribute in one of my context nodes as value attribute as char1 field. Then I have added to P getter method this code:

CASE iv_property.
     WHEN if_bsp_wd_model_setter_getter=>fp_fieldtype.
       rv_value = cl_bsp_dlc_view_descriptor=>field_type_radio.
     WHEN if_bsp_wd_model_setter_getter=>fp_radio_cols.
       rv_value = '2'.
     WHEN if_bsp_wd_model_setter_getter=>fp_group.
       rv_value = 'R1'.
   ENDCASE.

and to V method:

DATA: lt_ddlb TYPE bsp_wd_dropdown_table,
         ls_ddlb TYPE bsp_wd_dropdown_line,
         lr_ddlb_camp type REF TO cl_crm_uiu_ddlb.

   CREATE OBJECT lr_ddlb_camp
     EXPORTING
       iv_source_type = 'T'.

   clear : ls_ddlb.
   ls_ddlb-key = '1'.
   ls_ddlb-value = 'Edit'.
   append ls_ddlb to lt_ddlb.

   clear : ls_ddlb.
   ls_ddlb-key = '2'.
   ls_ddlb-value = 'View'.
   append ls_ddlb to lt_ddlb.

   lr_ddlb_camp->set_selection_table( lt_ddlb ).

   rv_valuehelp_descriptor = LR_DDLB_camp.

In the UI I can see only the field label but not actually the 2 radio buttons which are supposed to be there. Can anyone help me with this issue? I do not know what is missing here.

Thanks,

Tim