System.Xml.XPath.XPathDocument.CreateNavigator C# (CSharp) Метод

        public XPathNavigator CreateNavigator() {
            return new XPathDocumentNavigator(this.pageRoot, this.idxRoot, null, 0);
        }

        public void ReadDelegates(string file, DelegateCollection delegates, string apiname, string apiversions)
        {
            var specs = new XPathDocument(file);

            // The pre-GL4.4 spec format does not distinguish between
            // different apinames (it is assumed that different APIs
            // are stored in distinct signature.xml files).
            // To maintain compatibility, we detect the version of the
            // signatures.xml file and ignore apiname if it is version 1.
            var specversion = GetSpecVersion(specs);
            if (specversion == "1")
            {
                apiname = null;
            }

            foreach (var apiversion in apiversions.Split('|'))
            {
                string xpath_add, xpath_delete;
                GetSignaturePaths(apiname, apiversion, out xpath_add, out xpath_delete);

                foreach (XPathNavigator nav in specs.CreateNavigator().Select(xpath_delete))
                {
                    foreach (XPathNavigator node in nav.SelectChildren("function", String.Empty))
                        delegates.Remove(node.GetAttribute("name", String.Empty));
                }
                foreach (XPathNavigator nav in specs.CreateNavigator().Select(xpath_add))
                {
                    delegates.AddRange(ReadDelegates(nav, apiversion));
                }
            }
        }