AbapOO-event data_changed and F4- not in correct sequence (unwanted popup)

Question

Hi,
I have a splitter screen as a docking container to screen 100.
This splitter has a tree and an alv.
The alv part is editable and has the event data_changed is defined for the editable field.
The fieldcatalog on the alv (which has a dynamic field symbol as the data table) had the flag F4AVAILABE=X on the editable field.
The problem:
when I change the value on the editable field from invalid value to valid value, I still get the automatic SAP popup that says that my old value is not found in the check table.
WHY DO I GET THIS POPUP?
OR
HOW TO CONTROL THAT THE POPUP WILL BE AFTER THE VALUE CHANGE IS CAUGHT?
I checked the field symbol table and the value is being changed in the table before I get the message (for some reason on the data_changed event, the table er_data_changed->mt_good_cells is initial but the table er_data_changed->mt_mod_cells is filled with my changed data).
The ugly solution:
I put 'leave to screen 100' command after the update and I do not get the popup message anymore. but I would like to do so without refreshing the whole screen with this trip to the server.
I tried to put dispatch and flush (doesn't make sense to put them here but it can't damage) but this didn't help.
any ideas?
Thanks guys.

Answer 1

Thanks for your reply.
I did several programs with this method and the data always appears. you can also examine the SAP program I mentioned down.
I think that will not work but I may be wrong.
do you have any exape using this handler?
This event does not have a reference to the changed data so you would not know what field was changed.
if you look at the SAP example program BCALV_GRID_EDIT you will see that they use the same thing:
class lcl_event_receiver definition.
  public section.
    methods handle_data_changed
      for event data_changed of cl_gui_alv_grid
      importing er_data_changed.
class lcl_event_receiver implementation.
  method handle_data_changed.
    perform data_changed using er_data_changed.
  endmethod.
form data_changed using  rr_data_changed type ref to
                                         cl_alv_changed_data_protocol.
  data: ls_mod_cells type lvc_s_modi.
  loop at rr_data_changed->mt_good_cells into ls_mod_cells.
    case ls_mod_cells-fieldname.
      when  'CARRID'.
Itay