title: Axapta: Load and Save file from and to container field
body: <p>I need to customize AX to load an arbitrary file with arbitrary size and save it to database as a container field. I also need to read back from that container field and write the content into a file, which should contain exactly the same file content as before load.</p>
  
  <p>I had tried with BinaryIO, unfortunately with no luck</p>