private void DoWork(object sender, DoWorkEventArgs e)
        {
            if (_selectedAction == SelectedAction.IsNotChosen)
            {
                IsRunning = true;
                OnPropertyChanged($"IsRunning");
                MessageBox.Show("Не выбран метод шифрования");
                Thread.Sleep(1);
                return;
            }

            if (_inputFileName.Length == 0 || _outputFileName.Length == 0)
            {
                IsRunning = true;
                OnPropertyChanged($"IsRunning");
                MessageBox.Show("Пути до файлов не заданы");
                Thread.Sleep(1);
                return;
            }


            CurrentProgress = 0;
            OnPropertyChanged($"CurrentProgress");
            string result = "";

            switch (_selectedAction)
            {
            case SelectedAction.IsMyEncryptionAlgorithm:
                result = _encryptionAlgorithm.MyAlgorithm(_inputFileName, _outputFileName, _modeEncryption);
                break;

            case SelectedAction.IsMyDes:
                result = _encryptionAlgorithm.MyImplementationDes(_inputFileName, _outputFileName, _modeEncryption);
                break;

            case SelectedAction.IsStandartDes:
                result = _encryptionAlgorithm.StandartDes(_inputFileName, _outputFileName, _modeEncryption);
                break;

            case SelectedAction.IsVernam:
                result = _encryptionAlgorithm.Vernam(_inputFileName, _outputFileName);
                break;

            case SelectedAction.IsRc4:
                result = _encryptionAlgorithm.Rc4(_inputFileName, _outputFileName);
                break;
            }



            if (result == "")
            {
                CurrentProgress = 100;
                Thread.Sleep(1);
                OnPropertyChanged($"CurrentProgress");
            }
            else
            {
                MessageBox.Show(result);
                CurrentProgress = -1;
                Thread.Sleep(1);
            }

            IsRunning = true;
            OnPropertyChanged($"IsRunning");
        }