Como crear un mensaje de error en Web Dynpro
 

Hola

Quería saber como crear un mensaje de error en Web Dynpro para sacarlo por pantalla cuando se ha escrito algo incorrecto o se deja el campo vacio,que pasos habría que hacer,soy nuevo en esto del Webdynpro y la parte de los mensajes nunca la he visto

Gracias

Que tal Jacobo.
Te pongo una parte de código para que lo hagas similar

DATA: lo_message_manager TYPE REF TO if_wd_message_manager.

lo_message_manager->report_error_message(
EXPORTING
message_text = 'Este es mi mensaje de error' ).
EXIT.

Saludos

al poner ese código me da un dump
 

Hola Sook,no me va,te pongo lo que me sale,como puedo corregirlo

What has happened?
The URL was not called due to an error.


Note

■The following error text was processed in the system IDE : Access via 'NULL' object reference not possible.
■The error occurred on the application server idesecc_IDE_00 and in the work process 0 .
■The termination type was: RABAX_STATE
■The ABAP call stack was:
Method: ONACTIONBUSCARR of program /1BCWDY/B0TA3C3U8UXMLH61OW99==CP
Method: IF_WDR_VIEW_DELEGATE~WD_INVOKE_EVENT_HANDLER of program /1BCWDY/B0TA3C3U8UXMLH61OW99==CP
Method: INVOKE_EVENTHANDLER of program CL_WDR_DELEGATING_VIEW========CP
Method: IF_WDR_ACTION~FIRE of program CL_WDR_ACTION=================CP
Method: DO_HANDLE_ACTION_EVENT of program CL_WDR_WINDOW_PHASE_MODEL=====CP
Method: PROCESS_REQUEST of program CL_WDR_WINDOW_PHASE_MODEL=====CP
Method: PROCESS_REQUEST of program CL_WDR_WINDOW=================CP
Method: EXECUTE of program CL_WDR_MAIN_TASK==============CP
Method: IF_HTTP_EXTENSION~HANDLE_REQUEST of program CL_WDR_MAIN_TASK==============CP
Method: EXECUTE_REQUEST_FROM_MEMORY of program CL_HTTP_SERVER================CP





What can I do?
■If the termination type was RABAX_STATE, then you can find more information on the cause of the termination in the system IDE in transaction ST22.
■If the termination type was ABORT_MESSAGE_STATE, then you can find more information on the cause of the termination on the application server idesecc_IDE_00 in transaction SM21.
■If the termination type was ERROR_MESSAGE_STATE, then you can search for more information in the trace file for the work process 0 in transaction ST11 on the application server idesecc_IDE_00 . In some situations, you may also need to analyze the trace files of other work processes.
■If you do not yet have a user ID, contact your system administrator.


Error code: ICF-IE-http -c: 800 -u: MASTER203 -l: E -s: IDE -i: idesecc_IDE_00 -w: 0 -d: 20110810 -t: 230456 -v: RABAX_STATE -e: OBJECTS_OBJREF_NOT_ASSIGNED_NO



HTTP 500 - Internal Server Error


Your SAP Internet Communication Framework Team

Perdón, es q me faltó poner el código de creación de éstos objetos.
Sería algo así:

Data:
lo_comp TYPE REF TO if_wd_component,
lo_message_manager TYPE REF TO if_wd_message_manager.

lo_comp = wd_comp_controller->wd_get_api( ). lo_message_manager = lo_comp->get_message_manager( ).

lo_message_manager->report_error_message(
EXPORTING
message_text = 'tu error' ).
EXIT.


Con eso debería de funcionar.
Saludos

Gracias,si ya me va ,saludos