protected virtual IEnumerator GetEnumerator()
{
return(SourceCollection.GetEnumerator());
}
/// <summary>
/// Returns an enumerator that iterates through the collection.
/// </summary>
/// <remarks>
/// Subclass must implement this method.
/// </remarks>
/// <returns>
/// A <see cref="IEnumerator{T}"/> that can be used to iterate
/// through the collection.
/// </returns>
/// <filterpriority>1</filterpriority>
public override IEnumerator <TTo> GetEnumerator()
{
return(new TransformingEnumerator <TFrom, TTo>(SourceCollection.GetEnumerator(), Transform));
}