/// <summary>Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.</summary>
public void Dispose()
{
this.bag = null;
}
/// <summary>Initializes a new instance of the <see cref="BagEnumerator{T}"/> class.</summary>
/// <param name="bag">The bag.</param>
public BagEnumerator(Bag <T> bag)
{
this.bag = bag;
this.Reset();
}