Problem to save picture file

Hi,

when saving the picture file to Access DB, like

                    fl_nm = "c:\\inetpub\\VS2012\\App17\\" + lb_ph_file2.Text;
                    cmd = new OleDbCommand("update ite_tab set photo_file=@image where ite_abbr=@abbr", conn);

                    cmd.Parameters.Add("@abbr", OleDbType.VarChar).Value = tb_iteabbr.Text.Trim();
                    cmd.Parameters.Add("@image", OleDbType.Binary).Value = ImageToStream(fl_nm);
                    if (cmd.ExecuteNonQuery() >= 1) 
                    ...

        private byte[] ImageToStream(string fileName)
        {
            Bitmap image = new Bitmap(fileName);
            MemoryStream stream = new MemoryStream();
            image.Save(stream, System.Drawing.Imaging.ImageFormat.Bmp);
            return stream.ToArray();
        }

I get this exception. why?

An UPDATE or DELETE query cannot contain a multi-valued field.Microsoft Access Database Engine

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Many Thanks & Best Regards, Hua Min