将新节点添加到xml树 [英] Add new node to xml tree

问题描述

我正在生成一个xml树:

I am generating a xml tree:

var root = new XElement("Root");
for(int i =0;i<3;i++)
{ 
   var sub0lvl = new XElement(String.Format("sub{0}",i));
   root.Add(sub0lvl);
   for(int j=0;j<2;j++)
   {
     sub0lvl.Add(new XElement(String.Format("subsub{0}",i)));
   }
}

此代码生成以下xml树:

This code generate follow xml tree:

<Root>
  <sub0>
    <subsub0 />
    <subsub0 />
  </sub0>
  <sub1>
    <subsub1 />
    <subsub1 />
  </sub1>
  <sub2>
    <subsub2 />
    <subsub2 />
  </sub2>
  <sub8>
    <subsub123 />
  </sub8>
</Root>

我想使用类似的代码将新元素添加到sub1节点

And i want to add new element to sub1 node using code like that

root.Add(new XElement("sub1",new XElement("subsub123")));

但是此代码无法正常运行.只是将新的相同节点添加到根.正确的方法是什么?

But this code is not work as i wish. It's just add new same node to root. What is the right way to do that?

推荐答案

使用:

root.Element("sub1").Add(new XElement("subsub123"));

基本上，这是找到现有的 sub1元素并向其中添加新的子元素，而不是添加新的sub1元素.

Basically that's finding the existing sub1 element and adding a new sub-element to it, rather than adding a new sub1 element.

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