Activate Tab page and set cursor on field!

Question

Hi All,
I have a requirement to mimic SAP standard functionality like whenever a mandatory field is not enetered in a transaction, the control activates particular tab page and set the cursor on mandatory field.
My requirement is as below.
There is a main screen 1 with many tab pages.
But when I click on save button, the control goes to different screen. When a partular field is not enetered, then I should put my control to a particular tab page and cursor on that initial field.
Please help me to get this done. Al I think is SET SCREEN but not sure how I can eneable the control to a particular tab page and cursor on a field from the different screen.
Many thanks.
-Pratyusha
Edited by: pratyushasdn on Jun 24, 2010 2:07 PM

Answer 1

Hi chandrasekhar find my code below
this code i am writing under  at selection-screen.
*&      Form  Z_VALIDATE_TVKOV
FORM z_validate_tvkov .
  DATA: i_vtweg LIKE vbak-vtweg.
  IF NOT s_vtweg-low IS INITIAL.
    SELECT SINGLE vtweg FROM tvkov INTO i_vtweg
                 WHERE vtweg = s_vtweg-low.
    IF sy-subrc <> 0.
    set cursor FIELD 'S_VTWEG-LOW'.
    MESSAGE e000(z_sd) WITH text-052.
    ENDIF.
   ENDIF.
  IF NOT s_vtweg-high IS INITIAL.
    SELECT SINGLE vtweg FROM tvkov INTO i_vtweg
                        WHERE vtweg = s_vtweg-high.
    IF sy-subrc <> 0.
      MESSAGE e000(z_sd) WITH text-052.
    ENDIF.
  ENDIF.
ENDFORM.                    " Z_VALIDATE_TVKOV