/// <summary>
/// Gets or sets the <see cref="TEntity" /> with the specified index.
/// </summary>
public TEntity this[int index]
{
get
{
/////
// Struct type always returns an instance.
/////
IMutableIdKey match = _tracker.ElementAt(index);
return(Entity.Get <TEntity>(match.Key));
}
set
{
Precheck( );
/////
// Struct type always returns an instance.
/////
IMutableIdKey match = _tracker.ElementAt(index);
_tracker.Remove(match);
if (value != null)
{
_tracker.Add((( IEntityInternal )value).MutableId);
}
}
}