c# - Linq to XML 查询

Question

假设我有一个如下所示的 XML 文件:

<?xml version="1.0" encoding="utf-8"?>
<Customers>
  <Customer Name="Jason Voorhees" WeaponPurchased="Machette" SalePrice="499.90" />
  <Customer Name="Michael Myers" WeaponPurchased="Kitchen Knife" SalePrice="96.75" />
</Customers>

使用 Linq 是否有可能做这样的事情:？

foreach customer in Customers select WeaponPurchased where Name equals "Jason Voorhees"

或:

foreach customer in Customers select customer
label1.Text += "Name: " + customer.Name + Environment.NewLine + "WeaponPurchased: " + customer.WeaponPurchased;

我以前在 MSDN 上见过这种类型的查询，但我收藏夹中的链接现在指向错误的页面，我仍在努力寻找这些特定的示例。非常感谢任何帮助，

谢谢

Answer 1

试试这个:

var doc = XDocument.Load(Path.Combine(path, "file.xml"));
var query = from c in doc.Descendants("Customer")
            where c.Attributes("Name").Single().Value == "Jason Voorhees"
            select c.Attributes("WeaponPurchased").Single().Value;

它将返回 IEnumerable<string>带有武器名称。