從URL中讀取XML並將其分配給列表

Question

http://api.serviceu.com/rest/events/occurrences?orgkey=613dc2ce-0b32-4926-8e7e-33ee279be1cb

我有上面的xml url，它有n個出現次數。我需要讀取所有發生並將其加載到列表項中。如何使用XML讀取器來做到這一點。

XmlTextReader reader = new XmlTextReader(strURL); 

while (reader.Read()) 
{ 

} 

例如我怎樣才能讀所屬分類，ContactEmail，描述爲每一個發生。

謝謝。

Answer 1

Linq2Xml可以使生活更輕鬆。

XDocument xDoc = XDocument.Load("http://api.serviceu.com/rest/events/occurrences?orgkey=613dc2ce-0b32-4926-8e7e-33ee279be1cb"); 
var list = xDoc.Descendants("Occurrence") 
      .Select(o => new Item 
      { 
       Category = (string)o.Element("CategoryList"), 
       EMail = (string)o.Element("ContactEmail"), 
       Description = (string)o.Element("Description"), 
      }) 
      .ToList(); 


public class Item 
{ 
    public string Category; 
    public string EMail; 
    public string Description; 
} 

Answer 2

XmlTextReader reader = new XmlTextReader(strURL); 

    while (reader.Read()) 
    { 
     switch(reader.Name) 
     { 
      case "ContactEmail": 
        //reader.ReadElementContentAsString(); 
       break; 
      //... 
     } 
    } 

我會爲XML文檔中的每個集合創建一個支持類。

Answer 3

您可以使用XmlReader：

using(XmlReader reader = XmlReader.Create("...")) 
{ 
    while (reader.Read()) 
    { 
     if (reader.IsStartElement()) 
     { 
      switch (reader.Name) 
      { 
       case "CategoryList": 
        var cat = reader.ReadElementContentAsString(); 
        break; 
       case "ContactEmail": 
        var email = reader.ReadElementContentAsString(); 
        break; 
      } 
     } 
    } 
} 

或XmlDocument絲毫XPath：

XmlDocument document = new XmlDocument(); 
document.Load("..."); 
foreach (XmlNode node in document.SelectNodes("//CategoryList")) 
{ 
    var cat = node.InnerText; 
} 

foreach (XmlNode node in document.SelectNodes("//ContactEmail")) 
{ 
    var email = node.InnerText; 
} 

或LINQ到XML作爲L.B提及。

Answer 4

[DataContract(Name = "Occurrence", Namespace = "")] 
class Occurrence 
{ 
    [DataMember] 
    public string CategoryList { get; set; } 
    [DataMember] 
    public string ContactEmail { get; set; } 
    [DataMember] 
    public string Description { get; set; } 
} 

var ser = new DataContractSerializer(typeof(List<Occurrence>), "Occurrences", ""); 

List<Occurrence> objects = null; 
using (var reader = XmlReader.Create(strURL)) 
{ 
    objects = (List<Occurrence>) ser.ReadObject(reader); 
}