private void StartProcess_button_Click(object sender, EventArgs e) { ChangeAllEnabled(false); chunkUpdate_progressBar.Value = 0; if (mode_comboBox.SelectedIndex == 0) { Task.Run(() => _secureFile.Encrypt(_filePath, Path.GetDirectoryName(_filePath), deleteOrig_checkBox.Checked)); } else if (mode_comboBox.SelectedIndex == 1) { Task.Run(() => _secureFile.Decrypt(_filePath, Path.GetDirectoryName(_filePath), deleteOrig_checkBox.Checked)); } }