Select directories and files using Object Methods

The following code uses SAP Objects to select directories and files.

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*" For Selecting a File
*"
*" code also demonstrates 
*" how to specify the file extension


tables rlgrap.

data: i_tab type filetable,
      vg_subrc type i.

selection-screen begin of block m with frame.
    select-options so_fpath for rlgrap-filename.
selection-screen end of block m.

at selection-screen on value-request for so_fpath-low.

CALL METHOD CL_GUI_FRONTEND_SERVICES=>FILE_OPEN_DIALOG
    EXPORTING
        WINDOW_TITLE = 'Select File'
        DEFAULT_FILENAME = '*.txt'
        MULTISELECTION = 'X'
    CHANGING
        FILE_TABLE = i_tab
        RC = vg_subrc.

loop at i_tab into so_fpath-low.
    so_fpath-sign = 'I'.
    so_fpath-option = 'EQ'.
    append so_fpath.
endloop.

*"
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**************************************
*" For Selecting a Directory

data: v_path type string.

parameters: v_path2 like rlgrap-filename.

at selection-screen on value-request for v_path2.
    
    CALL METHOD cl_gui_frontend_services=>directory_browse
        EXPORTING window_title = 'Windows Title'
                        initial_folder = 'C:'
        CHANGING selected_folder = v_path.

    CALL METHOD cl_gui_cfw=>flush.

    concatenate v_path '' into v_path2.

*"
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