重新排序XML节点 [英] Reorder XML nodes

问题描述

我有一些看起来像这样的XML:

I’ve got some XML that looks something like this:

<root>
    <item>Banana</item>
    <item>Apple</item>
    <item>Cherry</item>
</root>

这不是我的实际数据，但在这里可以达到目的.我想做的是使用Linq to SQL对XML重新排序，以便子节点按字母顺序排列，例如.

It’s not the actual data I have, but it’ll serve the purpose here. What I want to do is use Linq to SQL to reorder the XML so that the child nodes are in alphabetical order, eg.

<root>
    <item>Apple</item>
    <item>Banana</item>
    <item>Cherry</item>
</root>

我希望能够在原始XDocument上调用ToString()，并使其返回第二组XML，如上所示.有没有简单的方法可以做到这一点?我尝试搜索，但没有运气.

I want to be able to then call ToString() on the original XDocument and have it return the second set of XML as shown above. Is there a simple way of doing this? I’ve tried searching, but no such luck.

推荐答案

也许:

var reordered = new XElement(
                    "root",
                    xdoc.Root.Elements("item")
                             .OrderBy(x => x.Value)
                             .Select(x => new XElement("item", x.Value)));

或者稍微灵活一些(尽管仅支持1个嵌套级别):

Or the slightly more flexible (albeit only supporting 1 nested level):

var reordered = new XElement(
                    xdoc.Root.Name,
                    xdoc.Root.Elements()
                             .OrderBy(x => x.Value)
                             .Select(x => new XElement(x.Name, x.Value)));

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