/// <summary>
/// Creates and adds a few ItemViewModel objects into the Items collection.
/// </summary>
public void LoadData()
{
// deserialize data.
ObservableCollection <Task> tasks = _persistenceService.GetTasks();
foreach (Task task in tasks)
{
task.PropertyChanged += TaskChanged;
}
tasks.CollectionChanged += (o, e) =>
{
if (e.NewItems != null)
{
foreach (Task newItem in e.NewItems)
{
newItem.PropertyChanged += TaskChanged;
}
}
if (e.OldItems != null)
{
foreach (Task oldItem in e.OldItems)
{
oldItem.PropertyChanged -= TaskChanged;
}
}
};
InitFilters(tasks);
this.IsDataLoaded = true;
}
/// <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);
}
/// <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);
}