public HtmlNode SelectSingleNode(string xpath)
{
if (xpath == null)
{
throw new ArgumentNullException("xpath");
}
XPathNodeIterator iterator = new HtmlNodeNavigator(this._ownerdocument, this).Select(xpath);
if (!iterator.MoveNext())
{
return(null);
}
HtmlNodeNavigator current = (HtmlNodeNavigator)iterator.Current;
return(current.CurrentNode);
}
public HtmlNodeCollection SelectNodes(string xpath)
{
HtmlNodeCollection nodes = new HtmlNodeCollection(null);
XPathNodeIterator iterator = new HtmlNodeNavigator(this._ownerdocument, this).Select(xpath);
while (iterator.MoveNext())
{
HtmlNodeNavigator current = (HtmlNodeNavigator)iterator.Current;
nodes.Add(current.CurrentNode);
}
if (nodes.Count == 0)
{
return(null);
}
return(nodes);
}