public PairPickerViewModel()
 {
     _users = new ObservableCollection<string>(ConfigurationManager.AppSettings["users"].Split(',').Select(u => u.Trim()));
     _path = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile) + "\\.gitconfig";
     _selectedUsers = new Collection<string>();
     _fileManager = new FileManager();
     AddUserCommand = new RelayCommand(AddUser);
 }
 public PairPickerViewModel()
 {
     _users = new ObservableCollection<string>(Settings.Default.Users);
     _selectedUsers = new Collection<string>();
     AddUserCommand = new RelayCommand(AddUser);
 }