如何使用字符串拆分將其轉換爲Lat，Long和Alt？

Question

我目前正在使用下面的代碼解析XML文件以獲取座標值。

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; } 

     } 


    } 

} 

該值在String StopLocation中，但我想將其轉換爲3個值Lat，Long和Alt。

我沒有使用過之前的字符串分割和文檔沒有解釋如何我可以從解析輸出做到這一點。

Out是提前這174.732224,-36.931053,0.000000

感謝。

Answer 1

鑑於這種輸出字符串，你可以通過讓你的三個數字：

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]); 

---

編輯：

你的代碼，將需要改變部分可能是：

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; } 
}