public void Should_throw_when_changing_position_of_non_existent_element()
{
var screen = new Screen();
screen.Add(new Circle());
m.ElementIndexChange(screen.Shapes, new Circle());
}
private static void ClassChanged(object sender, NotifyCollectionChangedEventArgs args)
{
switch (args.Action)
{
case NotifyCollectionChangedAction.Move:
M.ElementIndexChange((Class)sender, (Student)args.OldItems[0], args.OldStartingIndex);
Cache = new ObservableCollection <Student>((Class)sender);
break;
case NotifyCollectionChangedAction.Add:
case NotifyCollectionChangedAction.Replace:
case NotifyCollectionChangedAction.Remove:
if (args.OldItems != null)
{
foreach (var student in args.OldItems.Cast <Student>())
{
M.ElementRemove((Class)sender, student, Cache.IndexOf(student));
student.PropertyChanging -= StudentChanging;
}
}
if (args.NewItems != null)
{
foreach (var student in args.NewItems.Cast <Student>())
{
M.ElementAdd((Class)sender, student);
student.PropertyChanging += StudentChanging;
}
}
Cache = new ObservableCollection <Student>((Class)sender);
break;
default:
throw new NotSupportedException();
}
}
