如何确定xelelement . elements()是否包含具有特定名称的节点?

For example for the following XML

例如下面的XML

 <Order>
  <Phone>1254</Phone>
  <City>City1</City>
  <State>State</State>
 </Order>

I might want to find out whether the XElement contains "City" Node or not.

我可能想知道XElement是否包含“City”节点。

3 个解决方案

#1

Just use the other overload for Elements.

只对元素使用另一个重载。

bool hasCity = OrderXml.Elements("City").Any();

#2

It's been a while since I did XLinq, but here goes my WAG:

我做XLinq已经有一段时间了，但是我的WAG:

from x in XDocument
where x.Elements("City").Count > 0
select x

;

#3

David's is the best but if you want you can write your own predicate if you need some custom logic OrderXML.Elements("City").Exists(x=>x.Name =="City")

David's是最好的，但是如果您需要一些自定义逻辑order . xml . elements(“City”). exist (x=>x)，您可以编写自己的谓词。名字= =“城市”)

#1