public void Perform(Collections.ObservableHashSet <TItem> target)
{
foreach (TItem item in _items)
{
target.Add(item);
}
}
public void Perform(Collections.ObservableHashSet <TItem> target)
{
if (_keyResolved)
{
target.Add(_key);
}
}
public override void Perform(Collections.ObservableHashSet <TItem> target)
{
target.Add(_addedItem);
}
public override void Rollback(Collections.ObservableHashSet <TItem> target)
{
target.Add(_item);
}