file name validation on selection screen

[Former Member]

hi everybody,

According to requirement selction screen having a file path. If we specify the file location the data is downloaded and stores in the file. How to perfom validation on that file name.

[Former Member]

Use this FM to split file name PC_SPLIT_COMPLETE_FILENAME into filename & extension then check the both as per your requirement.

Regards,

Amit

reward all helpful replies.

[Former Member]

Hi,

What kind of validation do you want to perform?

Regards,

Vinodh.

[Former Member]

the validations are

1. path validations

2. file name validations

[Former Member]

Hi

try this:

AT SELECTION-SCREEN
    CALL METHOD CL_GUI_FRONTEND_SERVICES=>DIRECTORY_LIST_FILES
      EXPORTING
        DIRECTORY                   = PATH
      CHANGING
        FILE_TABLE                  = FILE_TABLE
        COUNT                          = COUNT
      EXCEPTIONS
        CNTL_ERROR                              = 1
        DIRECTORY_LIST_FILES_FAILED = 2
        WRONG_PARAMETER                 = 3
        ERROR_NO_GUI                           = 4
        OTHERS                                       = 5
            .
    IF SY-SUBRC <> 0.
-> Error
    ELSE.
      IF COUNT < 1.
 -> Error
      ENDIF.
    ENDIF.

U can use the method FILE_EXIST for the file

[kiran_k8]

Aswlkm,

parameter p_filename like rlgrap-filename value 'c:\younus.txt'.

if p_filename is not initial.

call gui_download.

else.

Message e000 with 'the field p_filename can't be initial'.

endif.

the above if condition checks the field p_filename is initial or not,if initital means not given any path it will throw up an error message else will call the gui_upload.

K.Kiran.

[amit_khare]

Use this FM to split file name PC_SPLIT_COMPLETE_FILENAME into filename & extension then check the both as per your requirement.

Regards,

Amit

reward all helpful replies.

[Former Member]

no need for validation , provide F4 help for that file

data: ifiletable type filetable.
data: xfiletable like line of ifiletable.
data: rc type i.
 
parameters: p_file1 type localfile default'C:test.txt'.
 
at selection-screen on value-request for p_file1.
 
call method cl_gui_frontend_services=>file_open_dialog
   EXPORTING
*    WINDOW_TITLE            =
*    DEFAULT_EXTENSION       =
*    DEFAULT_FILENAME        =
*    FILE_FILTER             =
     INITIAL_DIRECTORY       = 'C:'
*    MULTISELECTION          =
  changing
    file_table              = ifiletable
    rc                      = rc
*    USER_ACTION             =
  EXCEPTIONS
    FILE_OPEN_DIALOG_FAILED = 1
    CNTL_ERROR              = 2
    ERROR_NO_GUI            = 3
    others                  = 4.
        .
 read table ifiletable into xfiletable index 1.
 if sy-subrc = 0.
  p_file1 = xfiletable-FILENAME.
 endif.

[Former Member]

HI u can use these function modules.

1) CV120_SPLIT_PATH

2) RZL_READ_DIR_LOCAL