OO ALV: GET_SELECTED_ROWS is inconsistent.

[Former Member]

Hi experts,

I'm using the method get_selected_rows for my OO ALV.

It's under the user command module.

I don't know why but sometimes it populates the return table but sometimes it doesn't.

Any ideas what could be causing this?

Really appreciate your inputs.

Thanks

Chris

[former_member212002]

This happens because you are not clearing the custom container.

Do you have this check??

  if g_custom_container is initial.  
   ----------
  endif.

Check the same, if the check is not there, then set it up, then the method will always return values.

BR

Mishra..

[Former Member]

Hi Mishra,

Yes i already have that custom container check where you create the container and the grid all over again.

thanks for the input though.

Chris

[former_member194669]

Try to use method refresh_table_display after your get_selected_rows..

a®

[former_member536879]

Hi,

Can you pleaase paste your code.

With Regards,

Sumodh.P

[Former Member]

Hi Sumodh,

Sorry for this. I'm still learning OO coding. Hope you can help.

-

---

module status_0100 output.

perform f_show_grid.

endmodule.

-

---

form f_show_grid.

data: wa_rows like line of t_rows.

if custom_container is initial.

• create a custom container control for our ALV Control

create object custom_container

exporting

container_name = container

exceptions

cntl_error = 1

cntl_system_error = 2

create_error = 3

lifetime_error = 4

lifetime_dynpro_dynpro_link = 5.

• create an instance of alv control

create object grid

exporting

i_parent = custom_container.

wa_layout-sel_mode = 'A'.

call method grid->set_table_for_first_display

exporting

is_layout = wa_layout

changing

it_fieldcatalog = t_field

it_sort = t_sort

it_outtab = t_main.

perform create_grid.

• Create Object to receive events and link them to handler methods.

• When the ALV Control raises the event for the specified instance

• the corresponding method is automatically called.

create object event_receiver.

set handler event_receiver->handle_toolbar for grid.

• set handler event_receiver->handle_user_command for grid.

• Call method 'set_toolbar_interactive' to raise event TOOLBAR.

call method grid->set_toolbar_interactive.

else.

perform refresh_grid.

endif.

call method cl_gui_control=>set_focus

exporting

control = grid.

endform. "f_show_grid

-

---

form create_grid.

• Create an instance of alv control

create object grid

exporting

i_parent = custom_container.

wa_layout-sel_mode = 'A'.

call method grid->set_table_for_first_display

exporting

is_layout = wa_layout

changing

it_fieldcatalog = t_field

it_outtab = t_main.

• Create Object to receive events and link them to handler methods.

• When the ALV Control raises the event for the specified instance

• the corresponding method is automatically called.

create object event_receiver.

set handler event_receiver->handle_toolbar for grid.

set handler event_receiver->handle_hotspot_click for grid.

• set handler event_receiver->handle_user_command for grid.

• Call method 'set_toolbar_interactive' to raise event TOOLBAR.

call method grid->set_toolbar_interactive.

endform. " create_grid1

-

---

form refresh_grid.

call method grid->free.

perform create_grid.

call method grid->refresh_table_display.

endform. " refresh_grid1

-

---

module user_command_0100 input.

case ok_code.

perform f_selected_rows.

...

endmodule.

-

---

form f_selected_rows.

call method grid->get_selected_rows

importing

et_index_rows = t_rows.

--> after this t_rows gets values, sometimes it doesn't

...

endform.

-

---

Chris

[former_member194669]

Chris,

Try to call check_changed_data before the get_selected_row

form f_selected_rows.
 
CALL METHOD grid->check_changed_data( ).  " Add this line 

call method grid->get_selected_rows
importing
et_index_rows = t_rows.

endform.

a®

[Former Member]

Hi a®s,

Still. I figured that on first execution it works fine. Then sometimes by going back to the selection-screen and executing again, the problem persists.

Any ideas? Sorry for the trouble but this is really starting to frustrate me.

Chris

[Clemenss]

Hi Chris,

when you return to selection screen, the object custom_container is initialized in your program, but it still lives at your front end - gui controls are applications run by your PC.

When executing 'BACK' or other command to return to selection screen, you should call custom_container->free( ) and grid->free( ).

Otherwise the data you see are not the data you are processing.

Regards,

Clemens

[Former Member]

Thank you sir. And to all the others who helped.

Regards,

Chris

[Former Member]

Hi all,

I call back this old thread, because I tried every suggestion in this, but nothing helps.

I created 2 Dynpros. The first gives an overview, the second shows the details. If I select one or more rows after first display of the overview everything is fine. But if I go back from the detail screen to the overview screen and select any other row, method doesn`t recognize it.

r_cont type ref to cl_gui_custom_container,

r_alv type ref to cl_salv_table,

.....

r_select TYPE REF TO cl_salv_selections,

....

it_getsel TYPE salv_t_row

WHEN 'GET_DETAIL'.

LEAVE TO LIST-PROCESSING.

r_alv->get_metadata( ).

it_getsel = r_select->get_selected_rows( ).

CLEAR: r_alv, r_cont.

CALL SCREEN 0101.

Anyone - who knows a solution?

Cheers

DieterA