How to dynamicaly get node name of ui element

Hi friends.

I have the ui element and I need dynamically to get its node name.

How to get it in a dynamic way ?

DATA:         lr_comp_ctrl   TYPE REF TO cl_wdr_component,         lr_v_main_ctrl TYPE REF TO cl_wdr_delegating_view,         lr_v_root_elem TYPE REF TO cl_wd_transparent_container,         lr_label       TYPE REF TO cl_wd_label,         lr_uielement   TYPE REF TO cl_wd_uielement,         lr_context_element TYPE REF TO if_wd_context_element.    lr_comp_ctrl   ?= p_i_r_comp.   lr_v_main_ctrl ?= lr_comp_ctrl->get_controller( name = p_i_view_name ).   lr_v_root_elem ?= lr_v_main_ctrl->get_root_element( ).   tr_v_elements = lr_v_main_ctrl->get_elements( ).   LOOP AT tr_v_elements INTO e_element.
*     here !   ENDLOOP.

Thanks.

Glauco