LINQ To XML:重写一个结点的内容Replace

// we will use this to store a reference to one of the elements in the XML tree. XElement firstParticipant; XDocument xDocument = new XDocument( new XElement("BookParticipants", firstParticipant = new XElement("BookParticipant", new XAttribute("type", "Author"), new XElement("FirstName", "Joe"), new XElement("LastName", "Rattz")))); Console.WriteLine(System.Environment.NewLine + "Before updating elements:"); Console.WriteLine(xDocument); firstParticipant.ReplaceAll( new XElement("FirstName", "Ewan"), new XElement("LastName", "Buckingham")); Console.WriteLine(System.Environment.NewLine + "After updating elements:"); Console.WriteLine(xDocument);

输出

Before updating elements: <BookParticipants> <BookParticipant type="Author"> <FirstName>Joe</FirstName> <LastName>Rattz</LastName> </BookParticipant> </BookParticipants> After updating elements: <BookParticipants> <BookParticipant> <FirstName>Ewan</FirstName> <LastName>Buckingham</LastName> </BookParticipant> </BookParticipants>