public CalligrapherViewModel()
{
_viewSource = new CollectionViewSource();
ObservableCollection <Calligraphyer> calligraphyers = CalligrapherDataHelper.Load();
_viewSource.Source = calligraphyers;
}
//void View_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
//{
// if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add)
// {
// CalligrapherDataHelper.Insert((Calligraphyer)e.NewItems[0]);
// }
//}
public void AddCalligrapher()
{
Calligraphyer calligraphyer = new Calligraphyer();
calligraphyer.Name = "书法家";
calligraphyer.Description = "简介";
((ObservableCollection <Calligraphyer>)_viewSource.Source).Add(calligraphyer);
calligraphyer.Status = EntityBase.Statuses.New;
; CalligrapherDataHelper.Save((ObservableCollection <Calligraphyer>)_viewSource.Source);
}
//private static bool NotDelected(EntityBase entityBase)
//{
// return entityBase.Status != EntityBase.Statuses.Delete;
//}
public CalligrapherViewModel()
{
_viewSource = new CollectionViewSource();
ObservableCollection <Calligraphyer> calligraphyers = CalligrapherDataHelper.Load();
_viewSource.Source = calligraphyers;
//_viewSource.View.CurrentChanged += View_CurrentChanged;
//_viewSource.View.Filter = new Predicate<object>((o) => { return ((EntityBase)o).Status != EntityBase.Statuses.Delete; });
//_viewSource.View.CollectionChanged += View_CollectionChanged;
}
public void Save()
{
CalligrapherDataHelper.Save((ObservableCollection <Calligraphyer>)_viewSource.Source);
}
public void Delete(Calligraphyer c)
{
((ObservableCollection <Calligraphyer>)_viewSource.Source).Remove(c);
c.Status = EntityBase.Statuses.Delete;
CalligrapherDataHelper.Save(c);
}
public void Delete(int count)
{
CalligrapherDataHelper.DeleteOne((ObservableCollection <Calligraphyer>)_viewSource.Source, count);
_viewSource.Source = CalligrapherDataHelper.Load();
}
public void Clear()
{
CalligrapherDataHelper.DeleteAll((ObservableCollection <Calligraphyer>)_viewSource.Source);
_viewSource.Source = CalligrapherDataHelper.Load();
}
