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任何selectSingleNode方法,我想从一个XML文件属性:XmlNodeList中不具有通用的Windows应用程序或XAML
<yweather:location city="London" region="" country="United Kingdom"/>
<yweather:units temperature="C" distance="km" pressure="mb" speed="km/h"/>
<yweather:wind chill="13" direction="280" speed="19.31"/>
<yweather:atmosphere humidity="77" visibility="9.99" pressure="982.05" rising="0"/>
<yweather:astronomy sunrise="6:44 am" sunset="6:58 pm"/>
在我的WinForms应用程序,我可以很容易地做到这一点做(让我们说我检索的city
值):
string query = String.Format("url");
XmlDocument wData = new XmlDocument();
wData.Load(query);
XmlNamespaceManager man = new XmlNamespaceManager(wData.NameTable);
man.AddNamespace("yweather", "http://xml.weather.yahoo.com/ns/rss/1.0");
XmlNode channel = wData.SelectSingleNode("rss").SelectSingleNode("channel");
string city = channel.SelectSingleNode("yweather:location", man).Attributes["city"].Value;
但是,当我尝试这样做,通用的Windows应用程序(XAML)没有叫SelectSingleNode
,至少根据智能感知方法。我该如何去做并做到这一点?另外,并非所有的C#/ .NET框架的类都可以在UWP/XAML中访问,那么发生了什么?
这是我的尝试:
private async void SomeThing()
{
string url = String.Format("url");
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
HttpWebResponse response = (HttpWebResponse)await request.GetResponseAsync();
StreamReader reader = new StreamReader(response.GetResponseStream());
XmlDocument wData = new XmlDocument();
wData.Load(reader);
XmlNamespaceManager man = new XmlNamespaceManager(wData.NameTable);
man.AddNamespace("yweather", "http://xml.weather.yahoo.com/ns/rss/1.0");
string city = wData.SelectSingleNode("city").toString();
}
谢谢... ...工作有啥与UWP回事呢?为什么不支持所有的类和它们的方法? – envyM6