An odd problem when error handling

hi experts
I encountered a very odd problem when trying to show up an error message... and hope someone can help me out.
I defined a standard action in the view, and wrote some lines of code to check the input data in the predefined methodWDDOBEFOREACTIONwhich will call a method from component controller, and that method will call message_mananger->report_t100_message to show up an E type message if any error happened. But the problem is the program does not stop there but go into the action handler(ONACTIONACT_XXX).
I think it should actually stop and show up the message rather than get into the action handler because of the action is standar...
can anyone help?
many tkx

hi,
i went through your code.....the code is fine but as you told that it goes to the exception handler after coming to the message part ...this is because you are using
CALL METHOD LO_MESSAGE_MANAGER->REPORT_T100_MESSAGE
EXPORTING
    MSGID                     =
    MSGNO                     =
    MSGTY                     =
   P1                        =
   P2                        =
   P3                        =
   P4                        =
   MSG_USER_DATA             =
   IS_PERMANENT              = ABAP_FALSE
   SCOPE_PERMANENT_MSG       = CO_MSG_SCOPE_CONTROLLER
   VIEW                      =
   SHOW_AS_POPUP             =
   CONTROLLER_PERMANENT_MSG =
   MSG_INDEX                 =
   CANCEL_NAVIGATION         =
   ENABLE_MESSAGE_NAVIGATION =
RECEIVING
    MESSAGE_ID                =
this function will simply report that message but will not hold the control to the same screen..
so use
CALL METHOD LO_MESSAGE_MANAGER->REPORT_FATAL_ERROR_MESSAGE......
and tell me whether it solved the problem or not....
@ sarbjeet i think that Raise_T100_error is an obselete function...rite?
thanks and regards,
sahai.s

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