我需要一些帮助来制作一个linq查询,它将选择一个Product对象列表。每个产品对象都包含ProductItem列表。我不知道该怎么做的部分是如何创建Product.ProductItems列表。有人可以帮我一把这是Product,ProductItem,以及我正在玩的xml结构的一个例子。
以下是我的方向示例:
XDocument xDocument = XDocument.Load("../Content/index.xml");
return xDocument.Descendants("item")
.Select(arg =>
new Product
{
Name = arg.Parent.Attribute("name").Value,
ProductItems = new ProductItem{//set properties for PI} // This is where Im stuck.
})
.ToList();
}
我正在努力提高我的linq / lambda技能,所以如果你能给我和使用lambda语法的例子我会很感激!
非常感谢。
public class Product
{
public string Name { get; set; }
public IList<ProductItem> ProductItems { get; set; }
}
public class ProductItem
{
public string Hwid { get; set; }
public string Href { get; set; }
public string Localization { get; set; }
public DateTime BuildDateTime { get; set; }
public string IcpBuildVersion { get; set; }
}
}
<products>
<product name="Product1">
<item hwid="abk9184">
<href>Product1/abk9184_en-us/abk9184.html</href>
<localization>en-us</localization>
<build.start>2011-06-08 22:02 PM</build.start>
<build.icp>9.0.192.32</build.icp>
</item>
<item hwid="abk9185">
<href>LearningModules/abk9185_en-us/abk9185.html</href>
<localization>en-us</localization>
<build.start>2011-06-08 22:03 PM</build.start>
<build.icp>9.0.192.32</build.icp>
</item>
</product>
<product name="Product2">
<item hwid="aa6410">
<href>Product2/aa6410_en-us/aa6410.html</href>
<localization>en-us</localization>
<build.start>2011-06-08 22:04 PM</build.start>
<build.icp>9.0.192.32</build.icp>
</item>
<item hwid="tu6488">
<href>Product2/tu6488_en-us/tu6488.html</href>
<localization>en-us</localization>
<build.start>2011-06-08 22:04 PM</build.start>
<build.icp>9.0.192.32</build.icp>
</item>
答案 0 :(得分:15)
你应该经历Product
后代,而不是项目。这样你就可以阅读Product
元素了。然后更容易获得相关项目。
var doc = XDocument.Load("../Content/index.xml");
var products = doc.Elements("product")
.Select(p =>
new Product
{
Name = (string)p.Attribute("name"),
ProductItems = p.Elements("item")
.Select(i =>
new ProductItem
{
//set properties for PI
Hwid = (string)i.Attribute("hwid"),
Href = (string)i.Element("href"),
Localization = (string)i.Element("localization"),
// etc.
})
.ToList()
})
.ToList();