C#用linq to xml如何向现有文件中附加节点

Question

刚刚接触linq to xml，想向现有的xml文件继续写入数据，而不是覆盖，应该如何解决。没有找到类似Append之类的方法。希望有人指点一下xmllinqc#

Answer 1

        /// <summary>
        /// 2、添加元素
        /// </summary>
        /// <param name="xmlpath">XML文件的路径</param>
        private static void AddXmlElement(string xmlpath)
        {
            ///导入XML文件
            XElement xe = XElement.Load(xmlpath);
            ///创建一个新节点
            XElement book1 = new XElement("Book",
                               new XAttribute("BookID", "002"),
                               new XElement("BookNo", "0002"),
                               new XElement("BookName", "Book 0002"),
                               new XElement("BookPrice", "50"),
                               new XElement("BookRe", "This is a book 0002")
                );
            ///添加节点到XML文件中，并保存
            xe.Add(book1);
            ///创建一个新节点
            XElement book2 = new XElement("Book",
                               new XAttribute("BookID", "003"),
                               new XElement("BookNo", "0003"),
                               new XElement("BookName", "Book 0003"),
                               new XElement("BookPrice", "30"),
                               new XElement("BookRe", "This is a book 0003")
                );
            ///添加节点到XML文件中，并保存
            xe.Add(book2);
            ///创建一个新节点
            XElement book3 = new XElement("Book",
                               new XAttribute("BookID", "004"),
                               new XElement("BookNo", "0004"),
                               new XElement("BookName", "Book 0004"),
                               new XElement("BookPrice", "60"),
                               new XElement("BookRe", "This is a book 0004")
                );
            ///添加节点到XML文件中
            xe.Add(book3);
            ///保存到XML文件中
            xe.Save(xmlpath);            Console.WriteLine(xe);
        }
            //调用函数AddXmlElement(string xmlpath)
            ///添加XML元素
            Program.AddXmlElement(@"C:\BookStore.xml");参考博客http://bbs.csdn.net/topics/390017085