LINQ to XML DOM（轻松制作修改树）

Question

我想删除最后一个元素并用其他东西代替它。

我做了一些假想的代码（** 它不起作用**）。

我想重复使用它的上半部分，因为它们太长而且一直在变化。

如何制作真实的？

谢谢！！

var orignalTREE = new XDocument(
    new XElement( "Root", new XAttribute("Id", "0"),
        new XElement( "One", new XAttribute("Id", "1"),
            new XElement( "Two", new XAttribute("Id", "2"),
                new XElement( "Three", new XAttribute("Id", "3"),
                    new XElement( "Four", new XAttribute("Id", "4"),
                        new XElement( "Five", new XAttribute("Id", "5"),
                            new XElement("Six", new XAttribute("Id", "6"),
                                new XElement("Seven", new XAttribute("Id", "7"),
                                    new XElement( "LAST", "It will be removed")
)))))))));

var extractedELMNT = orignalTREE.ElementsBeforeSelf("LAST");
orignalTREE.Descendants("LAST").Remove();

var modifiedTREE = new XDocument(
    new XElement(
        extractedELMNT.Select(x =>x),
            new XElement( "Modified", new XAttribute("Testing...")
)));
MessageBox.Show( "Removed\n\n" + orignalTREE.ToString() +"\n\n\n"+ 
                 "Recovered\n\n" + modifiedTREE.ToString());

[添加]

我想更改这一个的结果；

<Root Id="0">
    <One Id="1">
        <Two Id="2">
            <Three Id="3">
                <Four Id="4">
                    <Five Id="5">
                        <Six Id="6">
                            <Seven Id="7">
                                <LAST>It will be removed</LAST>
                            </Seven>
                        </Six>
                    </Five>
                </Four>
            </Three>
        </Two>
    </One>
</Root>

到这个。

<Root Id="0">
    <One Id="1">
        <Two Id="2">
            <Three Id="3">
                <Four Id="4">
                    <Five Id="5">
                        <Six Id="6">
                            <Seven Id="7">
                                <Modified>Testing..</Modified>
                            </Seven>
                        </Six>
                    </Five>
                </Four>
            </Three>
        </Two>
    </One>
</Root>

一般来说。

Answer 1

试试这个： 已更新：

var orignalTREE = new XDocument(
            new XElement("Root", new XAttribute("Id", "0"),
                new XElement("One", new XAttribute("Id", "1"),
                    new XElement("Two", new XAttribute("Id", "2"),
                        new XElement("Three", new XAttribute("Id", "3"),
                            new XElement("Four", new XAttribute("Id", "4"),
                                new XElement("Five", new XAttribute("Id", "5"),
                                    new XElement("Six", new XAttribute("Id", "6"),
                                        new XElement("Seven", new XAttribute("Id", "7"),
                                            new XElement("LAST", "It will be removed")
                                            )))))))));

        var modifiedTREE = new XDocument(orignalTREE);
        var parent = modifiedTREE.Descendants("LAST").FirstOrDefault().Parent;
        modifiedTREE.Descendants("LAST").Remove();
        parent.Add(new XElement("Modified", "Its attribute"));

        Console.WriteLine("Removed\n\n" + orignalTREE.ToString() + "\n\n\n" +
                          "Recovered\n\n" + modifiedTREE.ToString());

LINQ to XML DOM（轻松制作修改树）

LINQ to XML DOM (making a modifed Tree easily)

c#

xml

linq

xmldom