Tab Navigation in ABAP screens

Question

Hi All,
Is the navigation sequence of the screen elements in a dynpro screen on "tab" event is from left to right and top to bottom always irrespective of whether the fields are in multiple subscreens/tab pages?. Is there a way to control the tab navigation sequence in Screens. Any help regarding this would be appreciated.
TIA,
Sharath

Answer 1

Hi,
The navigation sequence in tabstrip can be controlled in coding itself.
If u want to make the first tab as deault u can set that in coding as follows.
I will give u some sample coding try this out.
DATA FOR TABSTRIP 'MAIN_TAB'
CONTROLS:  main_tab TYPE TABSTRIP.
DATA:      BEGIN OF i_main_tab,
             subscreen   LIKE sy-dynnr,
             prog        LIKE sy-repid VALUE
                              'Program name',
             pressed_tab LIKE sy-ucomm,
                        <b>"  VALUE c_main_tab-tab1,(specify the tab u want to make default)</b>
           END OF i_main_tab.
U can control the tab flow in the PBO as
PROCESS BEFORE OUTPUT.
MODULE STATUS_9001.
  MODULE main_tab_active_tab_set.
  CALL SUBSCREEN main_tab_sca
    INCLUDING i_main_tab-prog i_main_tab-subscreen.
PROCESS AFTER INPUT.
MODULE USER_COMMAND_9001.
  MODULE main_tab_active_tab_get.
  MODULE main_tab_active_tab_set.
MODULE main_tab_active_tab_set OUTPUT.
IF ( NOT cb_det IS INITIAL ) AND
     ( i_main_tab-pressed_tab NE c_main_tab-tab1 ) .
   i_main_tab-pressed_tab = c_main_tab-tab2.
elseif ( NOT cb_det IS INITIAL ) AND
     ( i_main_tab-pressed_tab eq c_main_tab-tab1 ) .
   i_main_tab-pressed_tab = c_main_tab-tab1.
ELSEIF ( cb_det IS INITIAL ) AND
     ( i_main_tab-pressed_tab NE c_main_tab-tab2 ).
   i_main_tab-pressed_tab = c_main_tab-tab1.
ELSEIF ( cb_det IS INITIAL ) AND
     ( i_main_tab-pressed_tab eq c_main_tab-tab2 ).
   i_main_tab-pressed_tab = c_main_tab-tab2.
ENDIF.
  main_tab-activetab = i_main_tab-pressed_tab.
  CASE i_main_tab-pressed_tab.
    WHEN c_main_tab-tab1.
      i_main_tab-subscreen = '9100'.
      CALL METHOD o_alvgrid1->set_table_for_first_display
      EXPORTING
    WHEN c_main_tab-tab2.
  To display detail report
      i_main_tab-subscreen = '9200'.
      CALL METHOD o_alvgrid2->set_table_for_first_display
    WHEN OTHERS.
     DO NOTHING
  ENDCASE.
ENDMODULE.                 " MAIN_TAB_ACTIVE_TAB_SET  OUTPUT
*&      Module  MAIN_TAB_ACTIVE_TAB_GET  INPUT
      text
MODULE main_tab_active_tab_get INPUT.
  CASE sy-ucomm.
    WHEN c_main_tab-tab1.<b>(tab name)</b>
      i_main_tab-pressed_tab = c_main_tab-tab1.
    WHEN c_main_tab-tab2.
      i_main_tab-pressed_tab = c_main_tab-tab2.
    WHEN OTHERS.
     DO NOTHING
  ENDCASE.
ENDMODULE.              " MAIN_TAB_ACTIVE_TAB_GET  INPUT
&----&      Module  USER_COMMAND_9001  INPUT
      This performs PAI
MODULE user_command_9001 INPUT.
  CASE sy-ucomm.
    WHEN 'BACK'.
      PERFORM exit_program.
      SET SCREEN '0'.
    WHEN 'EXIT' OR  'CANC'.
      PERFORM exit_program.
      LEAVE PROGRAM.
    WHEN OTHERS.
  ENDCASE.
ENDMODULE.                 " USER_COMMAND_9001  INPUT
*&      Module  MAIN_TAB_ACTIVE_TAB_SET  INPUT
      text
MODULE main_tab_active_tab_set INPUT.
  main_tab-activetab = i_main_tab-pressed_tab.
  CASE i_main_tab-pressed_tab.
    WHEN c_main_tab-tab1.
      i_main_tab-subscreen = '9100'.
    WHEN c_main_tab-tab2.
      i_main_tab-subscreen = '9200'.
    WHEN OTHERS.
     DO NOTHING
  ENDCASE.
ENDMODULE.              " MAIN_TAB_ACTIVE_TAB_SET  INPUT
This is the sample code u can try this out.
Thanks &  Regards,
Judith