Refresh cl_salv_table=>factory attached to a Docking Container

Hi Gurus!!

I have a issue with a cl_salv_table=>factory attached to a Docking Container.

Here is my code set up, which might be wrong actually:

I've created a simple report, with a TOP and some include for PBO, PAI and routines. In the Report, I call a Screen, here 2000.

The TOP contains

DATA: docking_container     TYPE REF TO cl_gui_docking_container,
      gc_table_alv          TYPE REF TO cl_salv_table.

The Screen Flow is basic:

PROCESS BEFORE OUTPUT.
  MODULE status_2000.
*
PROCESS AFTER INPUT.
  MODULE user_command_2000.

With status_2000:

MODULE status_2000 OUTPUT.
  SET PF-STATUS 'STATUS'.
*  SET TITLEBAR 'xxx'.

* Initialization of docking container

  IF docking_container IS INITIAL.
    CREATE OBJECT docking_container
      EXPORTING
        side   = cl_gui_docking_container=>dock_at_bottom
      EXCEPTIONS
        OTHERS = 1.
    IF sy-subrc <> 0. MESSAGE a500. ENDIF.

    CALL METHOD docking_container->set_height
      EXPORTING
        height = 170.
  ENDIF.

ENDMODULE.                 " STATUS_2000  OUTPUT

Then the Screen PAI looks dumb, but in this example, I have drastically made the code simpler 😉