public XNodeNavigator(XNode node, XmlNameTable nameTable)
{
this.source = node;
this.nameTable = nameTable != null ? nameTable : CreateNameTable();
}
/// <summary>
/// Select an <see cref="XElement"/> using a XPath expression
/// </summary>
/// <param name="node">Extension point <see cref="XNode"/></param>
/// <param name="expression">The XPath expression</param>
/// <param name="resolver">A <see cref="IXmlNamespaceResolver"/> for the namespace
/// prefixes used in the XPath expression</param>
/// <returns>An <see cref="XElement"> or null</see></returns>
public static XElement XPathSelectElement(this XNode node, string expression, IXmlNamespaceResolver resolver)
{
return(node.XPathSelectElements(expression, resolver).FirstOrDefault());
}
/// <summary>
/// Select a set of <see cref="XElement"/> using a XPath expression
/// </summary>
/// <param name="node">Extension point <see cref="XNode"/></param>
/// <param name="expression">The XPath expression</param>
/// <returns>An <see cref="IEnumerable<XElement>"/> corresponding to the resulting set of elements</returns>
public static IEnumerable <XElement> XPathSelectElements(this XNode node, string expression)
{
return(node.XPathSelectElements(expression, null));
}
/// <summary>
/// Evaluates an XPath expression
/// </summary>
/// <param name="node">Extension point <see cref="XNode"/></param>
/// <param name="expression">The XPath expression</param>
/// <returns>The result of evaluating the expression which can be typed as bool, double, string or
/// IEnumerable</returns>
public static object XPathEvaluate(this XNode node, string expression)
{
return(node.XPathEvaluate(expression, null));
}
/// <summary>
/// Select an <see cref="XElement"/> using a XPath expression
/// </summary>
/// <param name="node">Extension point <see cref="XNode"/></param>
/// <param name="expression">The XPath expression</param>
/// <returns>An <see cref="XElement"> or null</see></returns>
public static XElement XPathSelectElement(this XNode node, string expression)
{
return(node.XPathSelectElement(expression, null));
}
public static IXPathNavigable ToXPathNavigable(this XNode node)
{
return(new XDocumentNavigable(node));
}
/// <summary>
/// Creates an <see cref="XPathNavigator"/> for a given <see cref="XNode"/>
/// </summary>
/// <param name="node">Extension point <see cref="XNode"/></param>
/// <returns>An <see cref="XPathNavigator"/></returns>
public static XPathNavigator CreateNavigator(this XNode node)
{
return(node.CreateNavigator(null));
}
public static IEnumerable <XElement> XPathSelectElements(this XNode node, string xpath)
{
return(XPathSelectElements(node, xpath, null));
}
public XDocumentNavigable(XNode n)
{
_node = n;
}
public static object XPathEvaluate(this XNode node, string expression, IXmlNamespaceResolver nsResolver)
{
return(CreateNavigator(node).Evaluate(expression, nsResolver));
}
public static XElement XPathSelectElement(this XNode node, string xpath)
{
return(XPathSelectElement(node, xpath, null));
}
public static XPathNavigator CreateNavigator(this XNode node, XmlNameTable nameTable)
{
return(new XNodeNavigator(node, nameTable));
}
public static XPathNavigator CreateNavigator(this XNode node)
{
return(CreateNavigator(node, new NameTable()));
}
public XNodeNavigator(XNode node, XmlNameTable?nameTable)
{
_source = node;
_nameTable = nameTable != null ? nameTable : CreateNameTable();
}
/// <summary>
/// Select a set of <see cref="XElement"/> using a XPath expression
/// </summary>
/// <param name="node">Extension point <see cref="XNode"/></param>
/// <param name="expression">The XPath expression</param>
/// <param name="resolver">A <see cref="IXmlNamespaceResolver"/> for the namespace
/// prefixes used in the XPath expression</param>
/// <returns>An <see cref="IEnumerable<XElement>"/> corresponding to the resulting set of elements</returns>
public static IEnumerable <XElement> XPathSelectElements(this XNode node, string expression, IXmlNamespaceResolver?resolver)
{
ArgumentNullException.ThrowIfNull(node);
return((IEnumerable <XElement>)XPathEvaluator.Evaluate <XElement>(node, expression, resolver));
}
/// <summary>
/// Evaluates an XPath expression
/// </summary>
/// <param name="node">Extension point <see cref="XNode"/></param>
/// <param name="expression">The XPath expression</param>
/// <param name="resolver">A <see cref="IXmlNamespaceResolver"> for the namespace
/// prefixes used in the XPath expression</see></param>
/// <returns>The result of evaluating the expression which can be typed as bool, double, string or
/// IEnumerable</returns>
public static object XPathEvaluate(this XNode node, string expression, IXmlNamespaceResolver?resolver)
{
ArgumentNullException.ThrowIfNull(node);
return(XPathEvaluator.Evaluate <object>(node, expression, resolver));
}
