public void ROC_Insert()
{
roc.AddRange(new[] { "A", "B", "C" });
roc.InsertRange(1, new[] { "D", "E", "F" });
Assert.AreEqual(2, changedevents.Count);
Assert.AreEqual("Reset", changedevents.Last());
Assert.AreEqual("A", roc[0]);
Assert.AreEqual("D", roc[1]);
Assert.AreEqual("B", roc[4]);
}
public void TestInsertRange()
{
List <int> list = new List <int> {
5, 6
};
collection.InsertRange(2, list.Select((arg) => IncrementCounter(arg)).Where(arg => arg >= 0));
Assert.AreEqual(2, counter);
Assert.AreEqual(2, index);
Assert.AreEqual(5, collection [index]);
Assert.AreEqual(actionsPerformed [0], NotifyCollectionChangedAction.Add);
Assert.AreEqual(1, notifications);
Assert.AreEqual(1, countNotifications);
}
protected virtual void HandleViewModelsCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (editing)
{
return;
}
editing = true;
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
model.InsertRange(e.NewStartingIndex, e.NewItems.OfType <TViewModel> ().Select((arg) => arg.Model));
foreach (TViewModel vm in e.NewItems)
{
modelToViewModel [vm.Model] = vm;
}
break;
case NotifyCollectionChangedAction.Remove:
model.RemoveRange(e.OldItems.OfType <TViewModel> ().Select((arg) => arg.Model));
foreach (TViewModel vm in e.OldItems)
{
modelToViewModel [vm.Model] = vm;
}
break;
case NotifyCollectionChangedAction.Replace:
model.Reset(ViewModels.Select(vm => vm.Model));
foreach (TViewModel vm in ViewModels)
{
modelToViewModel [vm.Model] = vm;
}
break;
case NotifyCollectionChangedAction.Reset:
model.Reset(ViewModels.Select(vm => vm.Model));
modelToViewModel.Clear();
foreach (TViewModel vm in ViewModels)
{
modelToViewModel.Add(vm.Model, vm);
}
break;
}
editing = false;
}