// Select a single node matching a particular XPath expression.
public XmlNode SelectSingleNode(String xpath, XmlNamespaceManager nsmgr)
{
XPathNavigator nav = CreateNavigator();
XPathExpression expr = nav.Compile(xpath);
if (nsmgr != null)
{
expr.SetContext(nsmgr);
}
SelectNodeList list = new SelectNodeList(nav.Select(expr));
return(list.Count == 0 ? null : list[0]);
}
internal SelectNodeList ProcessSelect()
{
var list = new SelectNodeList();
if (!string.IsNullOrWhiteSpace(selectClause))
{
var columns = selectClause.Split(new [] { "," }, StringSplitOptions.RemoveEmptyEntries);
foreach (var item in columns)
{
list.Add(new SelectNode(item));
}
}
return list;
}
