Setting a default value on web UI

For a component named ICCMP_BTSHEAD , Need  to set a default value on UI for "Description"  , lets say 'Default ' .

So for that , We have created an enhancement set , enhanced the concerned view(BTSHeader) to get a Z 

'view  controller' class  . We identified the context node as btadminh .

First ->  

Then we redefined the  method  do_prepare_output in concerned z class  and wrote code as given below :

Data lr_entity type ref to  cl_crm_bol_entity .

CALL METHOD SUPER->DO_PREPARE_OUTPUT

  EXPORTING

    iv_first_time = ABAP_false    .

    lr_entity ?= me->typed_context->btadminh->collection_wrapper->get_current( ).

     lr_entity->set_property( iv_attr_name = 'DESCRIPTION' iv_value = 'Default' ).

Second -> 

Redefine the method get_description inside the context node btadminh, assinging the value 'default'.

Code example 

    IF <nval> <> <oval>.

       current->set_property(

                      iv_attr_name = 'xxxx' "#EC NOTEXT

                      iv_value     = <nval> ).

    elseif <nval> is initial or <oval> is initial.

     current->set_property(

                      iv_attr_name = 'xxxx' "#EC NOTEXT

                      iv_value     = 'Default'  ).

 and in Get Description Method:

 IF dref IS NOT BOUND.

       value = 'BTOpportH/ZZPLANT not bound'."#EC NOTEXT

      value = 'Default'.

      RETURN.

   ENDIF.

 IF dref IS NOT BOUND.

      value = 'BTOpportH/ZZPLANT not bound'."#EC NOTEXT

      value = 'ARUP'.

       RETURN.

    ENDIF.