Error messages shown outside the view/table.

Question

Hi People,
      I have created a view & added an event 'Before saving the data' to it. So when we enter data into the view & try to save it, it will trigger the event & that will call a function module, which will check if the user entries are correct, If the entries are incorrect then i am showing an error message. The problem is, this error message is shown outside the view maintenence screen but inside the sm30 transaction! then I have to navigate back to my view maintenence screen. Kindly guide me on how to avoid this & make the error message appear in the same view maintenence screen. 
Thanks & Regards,
Deepak

Answer 1

Hi,
      I have now used the event '05' For new entries. I am able to validate the entries, & show the error messages for invalid entry. Now when I enter valid input, still the vent is triggered & it shows me the error message. I am using the following code
FORM CHECK_BEFORE_SAVE.
    DATA: wa_total(1000) TYPE c.
    DATA: BEGIN OF ls_total,
            mandt type mandt,
            FUNCTIONAL_ID type /PRA/RESP_FUNC_AREAS,
            HIER_ID type /PRA/HIER_ID,
            DESCRIPTION type /PRA/HIER_DESC,
            CHANGE_FLAG type boolean,
           END OF ls_total.
LOOP AT TOTAL INTO wa_total.
    ls_total = wa_total.
    IF ls_total-functional_id IS INITIAL.
        MESSAGE E208(00) WITH 'Functional Area cannot be empty'.
    ENDIF.
ENDLOOP.
ENDFORM.
I see that when i enter the valid entry & this event is triggered, The global table for view TOTAL is not refreshed with new values & hence I still get the error. How do i refresh this TOTAL table?
Regards,
Deepak