public static string GetChildValue(XPathNavigator nav, string childPath)
{
string str = (string)null;
XPathNavigator xpathNavigator = XPathNavUtil.SelectSingleChild(nav, childPath);
if (xpathNavigator != null)
{
str = xpathNavigator.Value;
}
return(str);
}
public static XPathNavigator SelectSingle(
XPathNavigator nav,
string XPath,
string nodeValue)
{
if (nav == null)
{
throw new ArgumentNullException(nameof(nav));
}
return(XPathNavUtil.FindNavigator(nav.Select(XPath), nodeValue));
}