private static Tuple <ThreadSafeBindableCollection <int>, SelectCollection <int, int> > BindingList1To5()
{
var ints = new ThreadSafeBindableCollection <int>();
ints.AddRange(new[] { 0, 1, 2, 3, 4 });
var sc = new SelectCollection <int, int>(ints, i => - i);
return(Tuple.Create(ints, sc));
}
public void RequeryOnSourceChange()
{
var list = new ThreadSafeBindableCollection <int>();
list.AddRange(Enumerable.Range(1, 100));
var filtered = new WhereCollection <int>(list, i => i % 2 == 0);
Assert.Equal(50, filtered.Count);
list.Add(3);
Assert.Equal(50, filtered.Count);
list.Add(4);
Assert.Equal(51, filtered.Count);
}
public void SendPropertyChangeNotification()
{
var list = new ThreadSafeBindableCollection <int>();
list.AddRange(Enumerable.Range(1, 100));
var filtered = new WhereCollection <int>(list, i => i % 2 == 0);
int ccFired = 0;
filtered.PropertyChanged += (s, e) =>
{
Assert.Equal(filtered, s);
Assert.Equal("Count", e.PropertyName);
ccFired++;
};
list.Add(4);
Assert.Equal(1, ccFired);
}
public void SendListChangeNotification()
{
var list = new ThreadSafeBindableCollection <int>();
list.AddRange(Enumerable.Range(1, 100));
var filtered = new WhereCollection <int>(list, i => i % 2 == 0);
int ccFired = 0;
filtered.CollectionChanged += (s, e) =>
{
Assert.Equal(filtered, s);
Assert.Equal(NotifyCollectionChangedAction.Reset, e.Action);
ccFired++;
};
list.Add(4);
Assert.Equal(1, ccFired);
}
