CLASS cl_event DEFINITION.
  PUBLIC SECTION.
    METHODS handle_double_click  FOR EVENT double_click
      OF cl_gui_alv_grid
      IMPORTING e_row        "双击单元格的行信息
                e_column     "双击单元格的列形象
                es_row_no.   "行编号
ENDCLASS.

CLASS cl_event IMPLEMENTATION.
  METHOD handle_double_click.
    DATA lv_index TYPE i.
    lv_index = e_row-index.
    MESSAGE '双击了第' && lv_index && '行' TYPE 'I'.
  ENDMETHOD.

ENDCLASS.

  CREATE OBJECT go_con
    EXPORTING
      container_name = 'CONTORL'.

  CREATE OBJECT go_alv
    EXPORTING
      I_parent = go_con.

  DATA(lo_event) = NEW cl_event( ).
  SET HANDLER lo_event->handle_double_click  FOR go_alv.