protected override void RemoveItem(int index)
{
DetailConfiguration detailConfig = this[index];
detailConfig.DetachFromContainingCollection();
DetailVisibilityChangedEventManager.RemoveListener(detailConfig, this);
base.RemoveItem(index);
}
protected override void ClearItems()
{
foreach (DetailConfiguration detailConfig in this)
{
detailConfig.DetachFromContainingCollection();
DetailVisibilityChangedEventManager.RemoveListener(detailConfig, this);
}
base.ClearItems();
}
protected override void InsertItem(int index, DetailConfiguration item)
{
if (item != null)
{
item.AttachToContainingCollection(this);
DetailVisibilityChangedEventManager.AddListener(item, this);
}
base.InsertItem(index, item);
}