public static bool TryGetFirstElementValueByXPathNavigator( XmlDocument xmlDocument, string xpath, PrefixedNamespace[] prefixedNamespaces, out string value ) { DocumentXPathResolver.CheckParameters(xmlDocument, prefixedNamespaces); bool result; if (string.IsNullOrEmpty(xpath)) { value = string.Empty; result = true; } else { string[] lineIter = DocumentXPathResolver.GetXPathValues(xmlDocument, xpath, prefixedNamespaces); int nodesCount = lineIter.Length; if (nodesCount >= 1) { value = lineIter[0]; result = true; } else { value = string.Empty; result = false; } } return(result); }
public static string GetElementValueByXPathNavigator( XmlDocument xmlDocument, string xpath, PrefixedNamespace[] prefixedNamespaces ) { DocumentXPathResolver.CheckParameters(xmlDocument, prefixedNamespaces); string result; if (string.IsNullOrEmpty(xpath)) { result = string.Empty; } else { string[] lineIter = DocumentXPathResolver.GetXPathValues(xmlDocument, xpath, prefixedNamespaces); int nodesCount = lineIter.Length; if (nodesCount < 1) { throw new NoXPathResultsException(xpath); } if (nodesCount > 1) { throw new TooManyXpathResultsException(xpath, nodesCount); } result = lineIter[0]; } return(result); }