Error in using popup to confirm dialog

Question

I am using a set of coding given in book. Follows :
I am giving the essential only here.....
DATA : LT_TEXT TYPE STRING_TABLE,
           LR_COMPONENT_API TYPE REF TO IF_WD_COMPONENT,
           LR_POPUP                  TYPE REF TO IF_WD_POPUP_TO_CONFIRM,
           LR_VIEW_CONTROLLER TYPE REF TO IF_WD_VIEW_CONTROLLER.
CALL METHOD CL_WD_POPUP_FACTORY=>POPUP_TO_CONFIRM
                EXPORTING
                                 COMPONENT   = LR_COMPONENT_API
                                        TEXT         =  LT_TEXT
                        WINDOW_TITLE         = 'DELETE CONFIRMATION'
                 RECEIVING
                          POPUP_TO_CONFIRM = WD_THIS->LR_POPUP.
Now I am getting the error like WD_THIS->LR_POPUP not defined .
i checked with the class CL_WD_POPUP_FACTORY and method POPUP_TO_CONFIRM  and LR_POPUP declaration for type compatibility, every this is fine but not working. can anyone help on this ?

Answer 1

Try the following code:
    DATA lo_api_componentcontroller TYPE REF TO if_wd_component.
    DATA : lr_popup TYPE REF TO if_wd_popup_to_confirm.
    DATA l_controller_api TYPE REF TO if_wd_controller.
    DATA : l_configuration TYPE wdr_popup_to_confirm.
    DATA : l_text_table TYPE string_table,
    ls_text_table TYPE string .
    lo_api_componentcontroller = wd_this->wd_get_api( ).
    l_controller_api = wd_this->wd_get_api( ).
    ls_text_table = 'Are you sure you want to Delete record?'.
    APPEND ls_text_table TO l_text_table .
    TRY.
        CALL METHOD cl_wd_popup_factory=>popup_to_confirm
          EXPORTING
            component        = lo_api_componentcontroller
            text             = l_text_table
            window_title     = 'Confirmation'
            configuration    = l_configuration
          RECEIVING
            popup_to_confirm = wd_this->popup.
      CATCH cx_wd_runtime_repository .
    ENDTRY.
    wd_this->popup->subscribe_to_events(
    controller = l_controller_api
    handler_name = 'CONF_DELETE' ).