public MainWindowViewModel(IAppController appController, IPatientRepository patientRepository)
{
_appController = appController;
_patientRepository = patientRepository;
AddWorkspace = new RelayCommand(param =>
{
var ws = _appController.GetWorkspace();
ws.CloseView += OnWorkspaceClose;
_workspaces.Add(ws);
});
_workspaces = new ObservableCollection<IWorkspace>();
Workspaces = CollectionViewSource.GetDefaultView(_workspaces);
}