/// <summary>
/// Returns a collection containing this element and all descendant elements.
/// </summary>
public static IEnumerable <HTMLElementNode> DescendantsAndSelf(this HTMLElementNode adapter)
{
yield return(adapter);
foreach (HTMLElementNode child in adapter.Descendants())
{
yield return(child);
}
}
/// <summary>
/// Returns a collection of descendant elements.
/// </summary>
public static IEnumerable <HTMLElementNode> Descendants <T>(this HTMLElementNode adapter)
{
return(adapter.Descendants().Where(i => i is T));
}
