private void cryptFile()
        {
            var isCrypted = false;

            try
            {
                isCrypted = model.cryptFile(CurrentFile);
                if (isCrypted)
                {
                    MessageCrypt = "Crype File succed";
                }
                else
                {
                    MessageCrypt = "Crypt File failed";
                }
            }catch (Exception ex)
            {
                MessageCrypt = ex.Message;
            }
        }