Regarding attachments

[Former Member]

I want to restrict editing or deleting or creating new attachment using Class-- CL_GOS_DOCUMENT_SERVICE in ME54N after PR is released,please help me.... u can provide me a sample code if u have ....

[Former Member]

TYPES : ref TYPE REF TO YTEST_GOS."zcl_gos_attachments."CL_GOS_ATTACHMENTS,"YTEST_GOS,

DATA: git_io TYPE ref, "sgs_rwmod,

v_ref TYPE REF TO cx_gos_al_error,

v_ip TYPE SGS_RWMOD.

CREATE OBJECT git_io.

TRY.

CALL METHOD git_io->set_rwmode

EXPORTING

ip_mode = 'D'.

CATCH cx_gos_al_error INTO v_ref .

ENDTRY.

***I am getting an error 'The obligatory parameter "IO_OBJECT" had no value assigned to it.'

[Former Member]

here io_object is in 'CONSTRUCTOR'..........How will i define it or how will i pass the value in git_io.