Problem with validation of selection screen

[Former Member]

I am creating session process for BDC

For that i am taking the flat file at runtime.i want check whether the entered file is valid or not..that means it exists are not?

how to do that..

[Former Member]

Hi Ravee

If you are reading the file from the presentation server then use this class method, CL_GUI_FRONTEND_SERVICES->FILE_EXIST to check if the file exists.

If you are reading the file from the application server then use the FM SUBST_GET_FILE_LIST, by passing the file name and path. If it returns an entry then that file is valid.

Cheers

~ Ranganath

[Former Member]

Hi,

If you are uploading file from Presentation server, you will be using GUI_UPLOAD function module. If file does not exist it will return error. (sy-subrc <> 0).

If you are fetching from Application server ,

OPEN DATASET ...

will return sy-subrc as 4.

[former_member404244]

Hi,

DATA: W_FILENAME TYPE STRING,

W_RESULT TYPE C.

W_FILENAME = WK_DIRECTRY.

CALL METHOD CL_GUI_FRONTEND_SERVICES=>FILE_EXIST

EXPORTING

FILE = W_FILENAME

RECEIVING

RESULT = W_RESULT

EXCEPTIONS

CNTL_ERROR = 1

ERROR_NO_GUI = 2

WRONG_PARAMETER = 3

NOT_SUPPORTED_BY_GUI = 4

others = 5.

IF SY-SUBRC 0.

MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-* MSGNO WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ENDIF.

IF W_RESULT IS INITIAL.

CALL METHOD CL_GUI_FRONTEND_SERVICES=>DIRECTORY_EXIST

EXPORTING

DIRECTORY = W_FILENAME

RECEIVING

RESULT = W_RESULT

EXCEPTIONS

CNTL_ERROR = 1

ERROR_NO_GUI = 2

WRONG_PARAMETER = 3

NOT_SUPPORTED_BY_GUI = 4

OTHERS = 5.

IF SY-SUBRC 0.

ENDIF.

ENDIF.

IF W_RESULT = 'X'.

RC = '1'.

ELSE.

RC = '0'.

ENDIF.

Regards,

nagaraj

[Former Member]

Hi Ravindra,

After uploading the data using GUI_UPLOAD check the sy-subrc value .

If it is ZERO : successful (FILE IS UPLOADED)

If it is NON-ZER0 : unsuccessful

Reward points if helpful.

Kiran Kumar.G.A

Have a Nice Day..