Ich möchte Yahoo Wetter API verwenden. aber die vorherige API wurde nicht autorisiert. Wie kann ich Yahoo Wetter RSS in meinem C# Code verwenden?

Question

Ich möchte Yahoo Wetter API verwenden. aber die vorherige API wurde nicht autorisiert. Wie kann ich Yahoo Wetter RSS in meinem C# Code verwenden? Ich habe versucht, dies zu nutzen:

https://query.yahooapis.com/v1/public/yql?q=select%20%20from%20weather.forecast%20where%20woeid%3D1915035%20and%20u%3D%27c%27&format=xml&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys

aber scheint es Null meiner XmlNode

Answer 1

private void GetWeather() 
{ 
    string query = String.Format("https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20weather.forecast%20where%20woeid%3D1915035%20and%20u%3D%27c%27&format=xml&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys"); 
    XmlDocument wData = new XmlDocument(); 
    wData.Load(query); 

    XmlNamespaceManager manager = new XmlNamespaceManager(wData.NameTable); 
    manager.AddNamespace("yweather", "http://xml.weather.yahoo.com/ns/rss/1.0"); 

    XmlNode channel = wData.SelectSingleNode("rss").SelectSingleNode("channel");//exception here 
    XmlNodeList nodes = wData.SelectNodes("rss/channel/item/yweather:forecast", manager); 

    Temperature = channel.SelectSingleNode("item").SelectSingleNode("yweather:condition", manager).Attributes["temp"].Value; 
    Condition = channel.SelectSingleNode("item").SelectSingleNode("yweather:condition", manager).Attributes["text"].Value; 
    Humidity = channel.SelectSingleNode("yweather:atmosphere", manager).Attributes["humidity"].Value; 
    WindSpeed = channel.SelectSingleNode("yweather:wind", manager).Attributes["speed"].Value; 
    Town = channel.SelectSingleNode("yweather:location", manager).Attributes["city"].Value; 
    TPCond = channel.SelectSingleNode("item").SelectSingleNode("yweather:forecast", manager).Attributes["text"].Value; 
    TPHigh = channel.SelectSingleNode("item").SelectSingleNode("yweather:forecast", manager).Attributes["high"].Value; 
    TPLow = channel.SelectSingleNode("item").SelectSingleNode("yweather:forecast", manager).Attributes["low"].Value;   
}