[英]how to sort xml nodes
I have an XML file in which I want to sort the Object nodes alphabetically and write them back to the file.我有一个 XML 文件,我想在其中按字母顺序对 Object 节点进行排序并将它们写回到文件中。 The raw file looks like this:
原始文件如下所示:
<?xml version="1.0" encoding="utf-8"?>
<Package>
<Objects>
<Object Type="Package">moB</Object>
<Object Type="Package">moA</Object>
<Object Type="Package">moC</Object>
</Objects>
</Package>
The expected output should be:预期的 output 应该是:
<?xml version="1.0" encoding="utf-8"?>
<Package>
<Objects>
<Object Type="Package">moA</Object>
<Object Type="Package">moB</Object>
<Object Type="Package">moC</Object>
</Objects>
</Package>
I want to solve this with LINQ, unfortunately I can't get the query to read the "Object" nodes as a collection for further processing.我想用 LINQ 解决这个问题,不幸的是我无法获取查询以将“对象”节点读取为一个集合以供进一步处理。
var xdoc = XDocument.Load(inputFile);
var orderedList = xdoc.Root.Element("Objects");
Try with this line, in order to select the Objects elements and order them:尝试使用这一行,以便 select 对象元素并对其进行排序:
var orderedList = xdoc.Root.Element("Objects")
.Elements("Object")
.OrderBy(e => e.Value);
Then you should create a new xElement to hold the sorted object elements and replace the original with the sorted version, and just save the modified doc!然后你应该创建一个新的 xElement 来保存排序后的 object 个元素,并将原始元素替换为排序后的版本,并保存修改后的文档!
I want to solve this with LINQ, unfortunately I can't get the query to read the "Object" nodes as a collection for further processing.
我想用 LINQ 解决这个问题,不幸的是我无法获取查询以将“对象”节点读取为一个集合以供进一步处理。
You are only reading the root Objects
, you need to read all the inner Object
nodes:您只读取根
Objects
,您需要读取所有内部Object
节点:
var objectList = xdoc.Root.Element("Objects").Elements("Object");
You can then sort them by inner text:然后您可以按内部文本对它们进行排序:
var orderedList = objectList.OrderBy(x => x.Value);
And replace the old Object
nodes by the ordered ones:并用有序节点替换旧的
Object
节点:
xdoc.Root.Element("Objects").ReplaceNodes(orderedList);
Finally you can save them back to the file:最后你可以将它们保存回文件中:
xdoc.Save(inputFile); // save
If you want to keep the original, I'd suggest saving it to a different file:如果您想保留原件,我建议将其保存到不同的文件中:
xdoc.Save("someOtherFile.xml");
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