public void RemoveRange(IEnumerable <IUniquelyNamed> containables)
{
foreach (var containable in containables)
{
if (containable is IEditable)
{
Editables.Remove(containable as IEditable);
}
if (containable is IEditableContainer)
{
Containers.Remove(containable as IEditableContainer);
}
if (containable is IDisplayable)
{
Displayables.Remove(containable as IDisplayable);
}
if (containable is IContentTransformer)
{
ContentTransformers.Remove(containable as IContentTransformer);
}
}
}
