public void Deselect(SelectorSelectable selectable)
{
if (Current == null)
{
throw new ArgumentNullException();
}
if (Current != selectable)
{
throw new ArgumentException();
}
SelectorSelectable current = Current;
Current = null;
current.Deselect();
}
public void Select(SelectorSelectable selectable)
{
if (Current == selectable)
{
throw new InvalidOperationException();
}
if (selectable == null)
{
throw new ArgumentNullException();
}
if (Current != null)
{
Deselect(Current);
}
Current = selectable;
Current.Select();
}
