System.Xml.DocumentXPathNavigator.ReplaceRange C# (CSharp) Méthode

        public override XmlWriter ReplaceRange(XPathNavigator lastSiblingToReplace) {
            DocumentXPathNavigator that = lastSiblingToReplace as DocumentXPathNavigator;
            if (that == null) {
                if (lastSiblingToReplace == null) {
                    throw new ArgumentNullException("lastSiblingToReplace");
                }
                else {
                    throw new NotSupportedException();
                }
            }

            this.CalibrateText();
            that.CalibrateText();

            XmlNode node = this.source;
            XmlNode end = that.source;

            if (node == end) {
                switch (node.NodeType) {
                    case XmlNodeType.Attribute:
                    case XmlNodeType.Document:
                    case XmlNodeType.DocumentFragment:
                        throw new InvalidOperationException(Res.GetString(Res.Xpn_BadPosition));
                    case XmlNodeType.Text:
                    case XmlNodeType.CDATA:
                    case XmlNodeType.SignificantWhitespace:
                    case XmlNodeType.Whitespace:
                        end = that.TextEnd(end);
                        break;
                    default:
                        break;
                }
            }
            else {
                if (end.IsText) {
                    end = that.TextEnd(end);
                }
                if (!IsFollowingSibling(node, end)) {
                    throw new InvalidOperationException(Res.GetString(Res.Xpn_BadPosition));
                }
            }

            DocumentXmlWriter writer = new DocumentXmlWriter(DocumentXmlWriterType.ReplaceToFollowingSibling, node, document);
            writer.NamespaceManager = GetNamespaceManager(node.ParentNode, document);
            writer.Navigator = this;
            writer.EndNode = end;
            return new XmlWellFormedWriter(writer, writer.Settings);
        }