how to read/write text file from your local machine?

Question

report  try1.

class register definition.
  public section.
    methods: constructor.
class-data: read_data type pa0008-bet01,    "i tried string first, but i found this one
endclass.                                       "still doesnt work

class register implementation.
 method constructor.
  data sometext(100) value 'C:\Users\tgbtstj3\Desktop\ZzZzZz.txt'.
  open dataset sometext for input in text mode encoding default.
  do.
   read dataset sometext into read_data.
   if sy-subrc <> 0.
    exit.
   endif.
   close dataset sometext.
   write / read_data.
  enddo.
 endmethod.
endclass.

data reg type ref to register.
START-OF-SELECTION.
create object reg.

here is my code, i just started abap programming and wanted to make a small program to learn... but i m stuck at reading txt file from my local machine and i cant proceed... the error says file is not open... and exception catched by cx_sy_file_open_mode

Answer 1

data file(100) value '.\myfile'.
data num type string.
open dataset file for output in text mode encoding default.
close dataset file.

then change the the read_data as:

class-data: num type string.

find and change all read_data to num.

Answer 2

The statement OPEN DATASET is used to access a file on the application server. To access the front-end, use the methods of the class CL_GUI_FRONTEND_SERVICES. For an example, check the report GRAPHICS_IGS_ZIPPER_DEMO.