[ABAP] TextEdit Control (cl_gui_textedit) Text löschen und neu setzen

DATA: o_edit TYPE REF TO cl_gui_textedit.
DATA: o_dock TYPE REF TO cl_gui_docking_container.

START-OF-SELECTION.

  WRITE: / 'Zeile 1'.
  WRITE: / 'Zeile 2'.
  WRITE: / 'Zeile 3'.
  
* Container-Objekt erzeugen
  o_dock = NEW #( no_autodef_progid_dynnr = abap_true
                  side = cl_gui_docking_container=>dock_at_bottom
                  ratio = 50 ).

* Editorobjekt erzeugen wordwrap an fester Position
  o_edit = NEW #( wordwrap_mode = cl_gui_textedit=>wordwrap_at_windowborder
                  wordwrap_to_linebreak_mode = cl_gui_textedit=>true
                  parent = o_dock ).

* feste Zeichenbreite
  o_edit->set_font_fixed( mode = cl_gui_textedit=>true ).

AT LINE-SELECTION.
* bei Doppelklick auf Zeile
  IF o_edit IS BOUND.
* Inhalt des TextEdit löschen
    o_edit->delete_text( ).
* Neuen text einfügen
    o_edit->set_textstream( |{ sy-lisel }| ).
  ENDIF.