public void BeginUpdate()
{
ViewFactory<NotifyingListItem> factory = ViewFactory<NotifyingListItem>.IBindingList();
ObjectListView<NotifyingListItem> view = factory.View;
IList<NotifyingListItem> list = factory.List;
view.BeginUpdate();
NotifyingListItem item = new NotifyingListItem();
view.Add(item); // normally would raise ListChanged (ItemAdded)
item.IntegerValue = 9; // normally would raise ListChanged (ItemChanged, reflecting PropertyChanged)
Assert.AreEqual(0, factory.ListChangedAddedCount);
Assert.AreEqual(0, factory.ListChangedItemChangedCount);
view.EndUpdate();
Assert.AreEqual(0, factory.ListChangedAddedCount);
Assert.AreEqual(0, factory.ListChangedItemChangedCount);
Assert.AreEqual(1, factory.ListChangedResetCount);
}
public void EndUpdateWithoutBeginUpdate()
{
ViewFactory<NotifyingListItem> factory = ViewFactory<NotifyingListItem>.IBindingList();
ObjectListView<NotifyingListItem> view = factory.View;
NotifyingListItem item = new NotifyingListItem();
view.Add(item);
item.IntegerValue = 9;
Assert.AreEqual(1, factory.ListChangedAddedCount);
Assert.AreEqual(1, factory.ListChangedItemChangedCount);
view.EndUpdate();
Assert.AreEqual(1, factory.ListChangedAddedCount);
Assert.AreEqual(1, factory.ListChangedItemChangedCount);
Assert.AreEqual(0, factory.ListChangedResetCount);
}
public void FilterPredicateVaryingListItemProperties()
{
ViewFactory<NotifyingListItem> factory = ViewFactory <NotifyingListItem>.IBindingList();
ObjectListView<NotifyingListItem> view = factory.View;
IList<NotifyingListItem> list = factory.List;
list.Add(new NotifyingListItem(1, "aaa", DateTime.Now));
list.Add(new NotifyingListItem(2, "bbb", DateTime.Now));
NotifyingListItem changingItem = new NotifyingListItem(3, "ccc", DateTime.Now);
list.Add(changingItem);
list.Add(new NotifyingListItem(4, "ddd", DateTime.Now));
list.Add(new NotifyingListItem(5, "eee", DateTime.Now));
view.FilterPredicate = delegate(NotifyingListItem listItem) { return listItem.IntegerValue < 3; };
Assert.AreEqual(2, view.Count);
changingItem.IntegerValue = 0;
Assert.AreEqual(3, view.Count);
}
public void ListChangedItemReplacedAndUpdated()
{
ViewFactory<NotifyingListItem> factory = ViewFactory<NotifyingListItem>.IBindingList();
IList<NotifyingListItem> list = factory.List;
list.Add(new NotifyingListItem(100, "aaa", new DateTime(1970, 1, 1)));
list.Add(new NotifyingListItem(80, "bbb", new DateTime(1980, 12, 12)));
list.Add(new NotifyingListItem(60, "ccc", new DateTime(1975, 6, 6)));
factory.ClearEventCounts();
NotifyingListItem item = new NotifyingListItem(50, "555", new DateTime(1955, 5, 5));
list[2] = item;
Assert.AreEqual(1, factory.ListChangedItemChangedCount);
item.IntegerValue = 60;
Assert.AreEqual(2, factory.ListChangedItemChangedCount);
}
public void ListChangedNotifyingItemChanged()
{
BindingList<NotifyingListItem> list = new BindingList<NotifyingListItem>();
NotifyingListItem item = new NotifyingListItem();
list.Add(item);
ViewFactory<NotifyingListItem> factory = ViewFactory<NotifyingListItem>.IBindingList(list);
factory.ClearEventCounts();
Assert.AreEqual(0, factory.ListChangedAddedCount);
Assert.AreEqual(0, factory.ListChangedDeletedCount);
Assert.AreEqual(0, factory.ListChangedItemChangedCount);
Assert.AreEqual(0, factory.ListChangedResetCount);
item.IntegerValue++;
Assert.AreEqual(0, factory.ListChangedAddedCount);
Assert.AreEqual(0, factory.ListChangedDeletedCount);
Assert.AreEqual(1, factory.ListChangedItemChangedCount);
Assert.AreEqual(0, factory.ListChangedResetCount);
}
public void ListChangedItemChangedOutOfFilter()
{
ViewFactory<NotifyingListItem> factory = ViewFactory<NotifyingListItem>.IBindingList();
ObjectListView<NotifyingListItem> view = factory.View;
IList<NotifyingListItem> list = factory.List;
list.Add(new NotifyingListItem(1, "aaa", DateTime.Now));
list.Add(new NotifyingListItem(5, "bbb", DateTime.Now));
list.Add(new NotifyingListItem(5, "ccc", DateTime.Now));
NotifyingListItem ddd = new NotifyingListItem(2, "ddd", DateTime.Now);
list.Add(ddd);
list.Add(new NotifyingListItem(5, "eee", DateTime.Now));
view.Filter = "IntegerValue < 5";
factory.ClearEventCounts();
ddd.IntegerValue = 6;
Assert.AreEqual(0, factory.ListChangedItemChangedCount);
Assert.AreEqual(1, factory.ListChangedDeletedCount);
}
