/// <summary>
/// Initializes a new instance of the <see cref="MainViewModel"/> class.
/// </summary>
public MainViewModel()
{
ApplicationName = "OPEN TODO";
Filters = new ObservableCollection <FiltersViewModel>();
EditTaskCommand = new DelegateCommand <Task>(OnEditCommandExecuted);
AddCommand = new DelegateCommand(OnAddCommandExecuted);
_persistenceService = new XmlPersistenceService();
_taskLists = _persistenceService.GetTaskLists();
_tasks = _persistenceService.GetTasks();
// refresh the list of filters. i.e. fixed labels + taskLists
_taskLists.CollectionChanged += (o, e) => InitFilters(_tasks);
ViewModelLocatorService.SetViewModel(typeof(EditListsView), new EditListsViewModel(_taskLists));
ViewModelLocatorService.SetViewModel(typeof(AddTaskView), new AddTaskViewModel(_tasks, _taskLists));
ViewModelLocatorService.SetViewModel(typeof(EditTaskView), new EditTaskViewModel(_tasks, _taskLists));
ViewModelLocatorService.SetViewModel(typeof(About), new AboutViewModel());
ShowAboutCommand = new DelegateCommand(OnShowAboutCommand);
ShowSettingsCommand = new DelegateCommand(OnShowSettings);
}
