Linq To XML:获得该结点的所有祖先结点，也可以说父结点吧

本文链接：https://blog.youkuaiyun.com/lee576/article/details/6339234

XElement firstParticipant; // A full document with all the bells and whistles. XDocument xDocument = new XDocument( new XDeclaration("1.0", "UTF-8", "yes"), new XDocumentType("BookParticipants", null, "BookParticipants.dtd", null), new XProcessingInstruction("BookCataloger", "out-of-print"), // Notice on the next line that we are saving off a reference to the first // BookParticipant element. new XElement("BookParticipants", firstParticipant = new XElement("BookParticipant", new XComment("This is a new author."), new XProcessingInstruction("AuthorHandler", "new"), new XAttribute("type", "Author"), new XElement("FirstName", new XText("Joe"), new XElement("NickName", "Joey")), new XElement("LastName", "Rattz")), new XElement("BookParticipant", new XAttribute("type", "Editor"), new XElement("FirstName", "Ewan"), new XElement("LastName", "Buckingham")))); foreach (XElement element in firstParticipant. Element("FirstName").Element("NickName").Ancestors()) { Console.WriteLine(element.Name); }

输出

FirstName BookParticipant BookParticipants

注意这个方法

foreach (XElement element in firstParticipant.

Element("FirstName").Element("NickName").Ancestors())

打印出的顺序是由里层父结点向外层父结点

如果打印结果要包含自身结点那么就这么写

foreach (XElement element in firstParticipant.

Element("FirstName").Element("NickName").AncestorsAndSelf())

{

Console.WriteLine(element.Name);

}