Windows Phone应用程序-C#linq解析xml [英] Windows phone App - C# linq to parse xml

问题描述

我如何解析.xml文件中的信息?

How do i parse information from a .xml file?

下面是我正在使用的.xml文件.

Below is the .xml file i am using. 

如何获取名称值并将其存储在字符串中?

How do i get the name values and store them in Strings?

<query xmlns:yahoo="http://www.yahooapis.com/v1/base.rng" yahoo:count="10" yahoo:created="2012-10-23T01:49:32Z" yahoo:lang="en-US">
<diagnostics>
<publiclyCallable>true</publiclyCallable>
<url execution-start-time="1" execution-stop-time="202" execution-time="201">
<![CDATA[
http://where.yahooapis.com/v1/places.q(san%20francisco%2C%20ca);start=0;count=10
]]>
</url>
<user-time>203</user-time>
<service-time>201</service-time>
<build-version>31071</build-version>
</diagnostics>
<results>
<place xmlns="http://where.yahooapis.com/v1/schema.rng">
<name>San Francisco</name>
<country code="US" type="Country" woeid="23424977">United States</country>
</place>
<place xmlns="http://where.yahooapis.com/v1/schema.rng">
<name>San Francisco</name>
<country code="ES" type="Country" woeid="23424950">Spain</country>
</place>
<place xmlns="http://where.yahooapis.com/v1/schema.rng">
<name>San Francisco</name>
<country code="ES" type="Country" woeid="23424950">Spain</country>
</place>
<place xmlns="http://where.yahooapis.com/v1/schema.rng">
<name>San Francisco</name>
<country code="BO" type="Country" woeid="23424762">Bolivia</country>
</place>
<place xmlns="http://where.yahooapis.com/v1/schema.rng">
<name>San Francisco</name>
<country code="BO" type="Country" woeid="23424762">Bolivia</country>
</place>
<place xmlns="http://where.yahooapis.com/v1/schema.rng">
<name>San Francisco</name>
<country code="BO" type="Country" woeid="23424762">Bolivia</country>
</place>
<place xmlns="http://where.yahooapis.com/v1/schema.rng">
<name>San Francisco</name>
<country code="BO" type="Country" woeid="23424762">Bolivia</country>
</place>
<place xmlns="http://where.yahooapis.com/v1/schema.rng">
<name>San Francisco</name>
<country code="BO" type="Country" woeid="23424762">Bolivia</country>
</place>
<place xmlns="http://where.yahooapis.com/v1/schema.rng">
<name>San Francisco</name>
<country code="BO" type="Country" woeid="23424762">Bolivia</country>
</place>
<place xmlns="http://where.yahooapis.com/v1/schema.rng">
<name>San Francisco</name>
<country code="PE" type="Country" woeid="23424919">Peru</country>
</place>
</results>
</query>

推荐答案

您可以使用LINQ to XML来解析xml文件中的数据.

You can use LINQ to XML to parse the data from your xml file.

例如:

using System.Collections.Generic;
using System.Linq;
using Microsoft.Phone.Controls;
using System.Xml.Linq;

namespace PhoneApp1
{
    public partial class MainPage : PhoneApplicationPage
    {
        public MainPage()
        {
            InitializeComponent();

            // the xml file contains your provided xml code
            XDocument xdoc1 = XDocument.Load("XMLFile1.xml");
            XNamespace ns = XNamespace.Get("http://where.yahooapis.com/v1/schema.rng");

            List<Place> places = 
                (from query in xdoc1.Elements("query").Elements("results").Elements(ns + "place") 
                 select new Place
                 {
                     Name = query.Element(ns + "name") != null ? 
                        (string)query.Element(ns + "name") : string.Empty,

                     Country = query.Element(ns + "country") != null ? 
                        (string)query.Element(ns + "country") : string.Empty,

                 }).ToList();

            List<string> names = new List<string>();
            foreach (var item in places)
                names.Add(item.Name);
        }
    }

    public class Place
    {
        public string Name { get; set; }
        public string Country { get; set; }
    }
}

希望我能帮您解决这个小例子.

I hope I could help you with this small example.

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