如何使用字符串拆分将其转换为Lat，Long和Alt？

Question

我目前正在使用下面的代码解析XML文件以获取坐标值。

private void PhoneApplicationPage_Loaded(object sender, RoutedEventArgs e) 
     { 

      WebClient busStops = new WebClient(); 
      busStops.DownloadStringCompleted += new DownloadStringCompletedEventHandler(busStops_DownloadStringCompleted); 
      busStops.DownloadStringAsync(new Uri("http://www.location.com/file.xml")); 


     } 


     void busStops_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e) 
     { 
      if (e.Error != null) 
       return; 



      var busStopInfo = XDocument.Load("Content/BusStops2.xml"); 

      var Transitresults = from root in busStopInfo.Descendants("Placemark") 
           let StoplocationE1 = root.Element("Point").Element("coordinates") 
           let nameE1 = root.Element("name") 


           select new TansitVariables 

           { 

            Stoplocation = StoplocationE1 == null ? null : StoplocationE1.Value, 
            name = nameE1 == null ? null : nameE1.Value, 

           }; 


      listBox2.ItemsSource = Transitresults; 

     } 

     public class TansitVariables 
     { 
      public string Stoplocation { get; set; } 
      public string name { get; set; } 

     } 


    } 

} 

该值在String StopLocation中，但我想将其转换为3个值Lat，Long和Alt。

我没有使用过之前的字符串分割和文档没有解释如何我可以从解析输出做到这一点。

Out是提前这174.732224,-36.931053,0.000000

感谢。

Answer 1

鉴于这种输出字符串，你可以通过让你的三个数字：

string result = "174.732224,-36.931053,0.000000"; 

var items = result.Split(','); 
double longitude = double.Parse(items[0]); 
double latitude = double.Parse(items[1]); 
double altitude = double.Parse(items[2]); 

---

编辑：

你的代码，将需要改变部分可能是：

var Transitresults = from root in busStopInfo.Descendants("Placemark") 
       let StoplocationE1 = root.Element("Point").Element("coordinates") 
       let nameE1 = root.Element("name") 
       select new TansitVariables(
         StoplocationE1 == null ? null : StoplocationE1.Value, 
         nameE1 == null ? null : nameE1.Value); 

    listBox2.ItemsSource = Transitresults; 
} 

// Add properties to your class 
public class TransitVariables 
{ 
     // Add a constructor: 
     public TransitVariables(string stopLocation, string name) 
     { 
      this.StopLocation = stopLocation; 
      this.Name = name; 
      if (!string.IsNullOrWhiteSpace(stopLocation)) 
      { 
       var items = stopLocation.Split(','); 
       this.Lon = double.Parse(items[0]); 
       this.Lat = double.Parse(items[1]); 
       this.Alt = double.Parse(items[2]); 
      } 
     } 

     public string StopLocation { get; set; } 
     public string Name { get; set; } 
     public double Lat { get; set; } 
     public double Lon { get; set; } 
     public double Alt { get; set; } 
}