Deserialize xml для объектов

Я пытаюсь десериализовать xml для объектов. Но я получаю эту ошибку:Deserialize xml для объектов

System.InvalidOperationException' occurred in System.Xml.dll Additional information: XML-document (1, 1) contains an error.

Это класс я использую для десериализация

[XmlRoot("MRData")] 
public class DriverData 
{ 
    [XmlElement("series")] 
    public string series { get; set; } 

    [XmlElement("url")] 
    public string url { get; set; } 

    [XmlElement("limit")] 
    public int limit { get; set; } 

    [XmlElement("offset")] 
    public int offset { get; set; } 

    [XmlElement("total")] 
    public int total { get; set; } 
} 


[XmlRoot("DriverTable")] 
public class DriverTable 
{ 
    [XmlElement("Driver")] 
    public List<Driver> Drivers { get; set; } 
} 

public class Driver 
{ 
    [XmlElement("driverId")] 
    public string driverId { get; set; } 

    [XmlElement("url")] 
    public string url { get; set; } 

    [XmlElement("GivenName")] 
    public string GivenName { get; set; } 

    [XmlElement("FamilyName")] 
    public string FamilyName { get; set; } 

    [XmlElement("DateOfBirth")] 
    public DateTime DateOfBirth { get; set; } 

    [XmlElement("Nationality")] 
    public string Nationality { get; set; } 

}

Я совершенно уверен, что DriverDriverTable и правы, но, возможно, ошибка в DriverData?

class RacingApiClient 
{ 
    public ObservableCollection<DriverData> GetDrivers() 
    { 
     var url = "http://ergast.com/api/f1/drivers"; 

     ObservableCollection<DriverData> drivers = new ObservableCollection<DriverData>(); 

     // Syncronious comsumption 
     var syncClient = new WebClient(); 
     var content = syncClient.DownloadString(url); 

     XmlSerializer serializer = new XmlSerializer(typeof(ObservableCollection<DriverData>)); 

     using (TextReader reader = new StringReader(url)) 
     { 
      drivers = ((ObservableCollection<DriverData>)serializer.Deserialize(reader)); 
     } 
     return drivers; 
    } 
}

Эта линия бросает ошибку: drivers=((ObservableCollection<DriverData>)serializer.Deserialize(reader));

Ответ XML является:

<?xml version="1.0" encoding="utf-8"?> 
<?xml-stylesheet type="text/xsl" href="http://ergast.com/schemas/mrd-1.4.xsl"?> 
<MRData xmlns="http://ergast.com/mrd/1.4" series="f1" url="http://ergast.com/api/f1/drivers" limit="30" offset="0" total="833"> 
    <DriverTable> 
     <Driver driverId="abate" url="http://en.wikipedia.org/wiki/Carlo_Mario_Abate"> 
      <GivenName>Carlo</GivenName> 
      <FamilyName>Abate</FamilyName> 
      <DateOfBirth>1932-07-10</DateOfBirth> 
      <Nationality>Italian</Nationality> 
     </Driver> 
     <Driver driverId="abecassis" url="http://en.wikipedia.org/wiki/George_Abecassis"> 
      <GivenName>George</GivenName> 
      <FamilyName>Abecassis</FamilyName> 
      <DateOfBirth>1913-03-21</DateOfBirth> 
      <Nationality>British</Nationality> 
     </Driver> 
     <Driver driverId="acheson" url="http://en.wikipedia.org/wiki/Kenny_Acheson"> 
      <GivenName>Kenny</GivenName> 
      <FamilyName>Acheson</FamilyName> 
      <DateOfBirth>1957-11-27</DateOfBirth> 
      <Nationality>British</Nationality> 
     </Driver> 
     <Driver driverId="adams" url="http://en.wikipedia.org/wiki/Philippe_Adams"> 
      <GivenName>Philippe</GivenName> 
      <FamilyName>Adams</FamilyName> 
      <DateOfBirth>1960-11-19</DateOfBirth> 
      <Nationality>Belgian</Nationality> 
     </Driver> 
     <Driver driverId="ader" url="http://en.wikipedia.org/wiki/Walt_Ader"> 
      <GivenName>Walt</GivenName> 
      <FamilyName>Ader</FamilyName> 
      <DateOfBirth>1912-12-15</DateOfBirth> 
      <Nationality>American</Nationality> 
     </Driver> 
     <Driver driverId="adolff" url="http://en.wikipedia.org/wiki/Kurt_Adolff"> 
      <GivenName>Kurt</GivenName> 
      <FamilyName>Adolff</FamilyName> 
      <DateOfBirth>1921-11-05</DateOfBirth> 
      <Nationality>German</Nationality> 
     </Driver> 
     <Driver driverId="agabashian" url="http://en.wikipedia.org/wiki/Fred_Agabashian"> 
      <GivenName>Fred</GivenName> 
      <FamilyName>Agabashian</FamilyName> 
      <DateOfBirth>1913-08-21</DateOfBirth> 
      <Nationality>American</Nationality> 
     </Driver> 
     <Driver driverId="ahrens" url="http://en.wikipedia.org/wiki/Kurt_Ahrens,_Jr."> 
      <GivenName>Kurt</GivenName> 
      <FamilyName>Ahrens</FamilyName> 
      <DateOfBirth>1940-04-19</DateOfBirth> 
      <Nationality>German</Nationality> 
     </Driver> 
     <Driver driverId="albers" code="ALB" url="http://en.wikipedia.org/wiki/Christijan_Albers"> 
      <GivenName>Christijan</GivenName> 
      <FamilyName>Albers</FamilyName> 
      <DateOfBirth>1979-04-16</DateOfBirth> 
      <Nationality>Dutch</Nationality> 
     </Driver> 
     <Driver driverId="alboreto" url="http://en.wikipedia.org/wiki/Michele_Alboreto"> 
      <GivenName>Michele</GivenName> 
      <FamilyName>Alboreto</FamilyName> 
      <DateOfBirth>1956-12-23</DateOfBirth> 
      <Nationality>Italian</Nationality> 
     </Driver> 
     <Driver driverId="alesi" url="http://en.wikipedia.org/wiki/Jean_Alesi"> 
      <GivenName>Jean</GivenName> 
      <FamilyName>Alesi</FamilyName> 
      <DateOfBirth>1964-06-11</DateOfBirth> 
      <Nationality>French</Nationality> 
     </Driver> 
     <Driver driverId="alguersuari" code="ALG" url="http://en.wikipedia.org/wiki/Jaime_Alguersuari"> 
      <GivenName>Jaime</GivenName> 
      <FamilyName>Alguersuari</FamilyName> 
      <DateOfBirth>1990-03-23</DateOfBirth> 
      <Nationality>Spanish</Nationality> 
     </Driver> 
     <Driver driverId="alliot" url="http://en.wikipedia.org/wiki/Philippe_Alliot"> 
      <GivenName>Philippe</GivenName> 
      <FamilyName>Alliot</FamilyName> 
      <DateOfBirth>1954-07-27</DateOfBirth> 
      <Nationality>French</Nationality> 
     </Driver> 
     <Driver driverId="allison" url="http://en.wikipedia.org/wiki/Cliff_Allison"> 
      <GivenName>Cliff</GivenName> 
      <FamilyName>Allison</FamilyName> 
      <DateOfBirth>1932-02-08</DateOfBirth> 
      <Nationality>British</Nationality> 
     </Driver> 
     <Driver driverId="alonso" code="ALO" url="http://en.wikipedia.org/wiki/Fernando_Alonso"> 
      <PermanentNumber>14</PermanentNumber> 
      <GivenName>Fernando</GivenName> 
      <FamilyName>Alonso</FamilyName> 
      <DateOfBirth>1981-07-29</DateOfBirth> 
      <Nationality>Spanish</Nationality> 
     </Driver> 
     <Driver driverId="amati" url="http://en.wikipedia.org/wiki/Giovanna_Amati"> 
      <GivenName>Giovanna</GivenName> 
      <FamilyName>Amati</FamilyName> 
      <DateOfBirth>1962-07-20</DateOfBirth> 
      <Nationality>Italian</Nationality> 
     </Driver> 
     <Driver driverId="amick" url="http://en.wikipedia.org/wiki/Red_Amick"> 
      <GivenName>Red</GivenName> 
      <FamilyName>Amick</FamilyName> 
      <DateOfBirth>1929-01-19</DateOfBirth> 
      <Nationality>American</Nationality> 
     </Driver> 
     <Driver driverId="george_amick" url="http://en.wikipedia.org/wiki/George_Amick"> 
      <GivenName>George</GivenName> 
      <FamilyName>Amick</FamilyName> 
      <DateOfBirth>1924-10-24</DateOfBirth> 
      <Nationality>American</Nationality> 
     </Driver> 
     <Driver driverId="amon" url="http://en.wikipedia.org/wiki/Chris_Amon"> 
      <GivenName>Chris</GivenName> 
      <FamilyName>Amon</FamilyName> 
      <DateOfBirth>1943-07-20</DateOfBirth> 
      <Nationality>New Zealander</Nationality> 
     </Driver> 
     <Driver driverId="anderson" url="http://en.wikipedia.org/wiki/Bob_Anderson_(racing_driver)"> 
      <GivenName>Bob</GivenName> 
      <FamilyName>Anderson</FamilyName> 
      <DateOfBirth>1931-05-19</DateOfBirth> 
      <Nationality>British</Nationality> 
     </Driver> 
     <Driver driverId="andersson" url="http://en.wikipedia.org/wiki/Conny_Andersson"> 
      <GivenName>Conny</GivenName> 
      <FamilyName>Andersson</FamilyName> 
      <DateOfBirth>1939-12-28</DateOfBirth> 
      <Nationality>Swedish</Nationality> 
     </Driver> 
     <Driver driverId="andretti" url="http://en.wikipedia.org/wiki/Michael_Andretti"> 
      <GivenName>Michael</GivenName> 
      <FamilyName>Andretti</FamilyName> 
      <DateOfBirth>1962-10-02</DateOfBirth> 
      <Nationality>American</Nationality> 
     </Driver> 
     <Driver driverId="mario_andretti" url="http://en.wikipedia.org/wiki/Mario_Andretti"> 
      <GivenName>Mario</GivenName> 
      <FamilyName>Andretti</FamilyName> 
      <DateOfBirth>1940-02-28</DateOfBirth> 
      <Nationality>American</Nationality> 
     </Driver> 
     <Driver driverId="andrews" url="http://en.wikipedia.org/wiki/Keith_Andrews_(driver)"> 
      <GivenName>Keith</GivenName> 
      <FamilyName>Andrews</FamilyName> 
      <DateOfBirth>1920-06-15</DateOfBirth> 
      <Nationality>American</Nationality> 
     </Driver> 
     <Driver driverId="apicella" url="http://en.wikipedia.org/wiki/Marco_Apicella"> 
      <GivenName>Marco</GivenName> 
      <FamilyName>Apicella</FamilyName> 
      <DateOfBirth>1965-10-07</DateOfBirth> 
      <Nationality>Italian</Nationality> 
     </Driver> 
     <Driver driverId="armi" url="http://en.wikipedia.org/wiki/Frank_Armi"> 
      <GivenName>Frank</GivenName> 
      <FamilyName>Armi</FamilyName> 
      <DateOfBirth>1918-10-12</DateOfBirth> 
      <Nationality>American</Nationality> 
     </Driver> 
     <Driver driverId="arnold" url="http://en.wikipedia.org/wiki/Chuck_Arnold"> 
      <GivenName>Chuck</GivenName> 
      <FamilyName>Arnold</FamilyName> 
      <DateOfBirth>1926-05-30</DateOfBirth> 
      <Nationality>American</Nationality> 
     </Driver> 
     <Driver driverId="arnoux" url="http://en.wikipedia.org/wiki/Ren%C3%A9_Arnoux"> 
      <GivenName>RenÃ©</GivenName> 
      <FamilyName>Arnoux</FamilyName> 
      <DateOfBirth>1948-07-04</DateOfBirth> 
      <Nationality>French</Nationality> 
     </Driver> 
     <Driver driverId="arundell" url="http://en.wikipedia.org/wiki/Peter_Arundell"> 
      <GivenName>Peter</GivenName> 
      <FamilyName>Arundell</FamilyName> 
      <DateOfBirth>1933-11-08</DateOfBirth> 
      <Nationality>British</Nationality> 
     </Driver> 
     <Driver driverId="ascari" url="http://en.wikipedia.org/wiki/Alberto_Ascari"> 
      <GivenName>Alberto</GivenName> 
      <FamilyName>Ascari</FamilyName> 
      <DateOfBirth>1918-07-13</DateOfBirth> 
      <Nationality>Italian</Nationality> 
     </Driver> 
    </DriverTable> 
</MRData>

Как исправить ошибку и вернуть ObservableCollection?

источник

2015-06-13 Sybren

Является ваш XML документ правильно? Он должен начинаться с ''. Прямо сейчас он пропускает открытие '<'. – Glorfindel

XmlDocument xml = new XmlDocument(); xml.loadXML (strXML); // presto, ваш XML находится в объекте. Теперь вы можете запускать XSL, схемы, xPath, что хотите. –

@Glorfindel открытие '<' было ошибкой копирования/вставки, которую я редактировал – Sybren

У вас есть целый ряд вопросов:

Вы пытаетесь десериализации один MRData элемента в ObservableCollection<DriverData>. Это не коллизия. Создание сериалайзер для одного объекта:
```
XmlSerializer serializer = new XmlSerializer(typeof(DriverData)); 
```
Вы игнорировали пространство имен для MRData, вам необходимо изменить атрибут XmlRoot включить это:
```
[XmlRoot("MRData", Namespace = "http://ergast.com/mrd/1.4")] 
```

DriverTable отсутствует на DriverData класса определение. Вы также добавили атрибуты XmlElement ко всем другим свойствам. Это атрибуты, а не элементы, поэтому должны быть атрибуты XmlAttribute. Полное исправил определение:

[XmlRoot("MRData", Namespace = "http://ergast.com/mrd/1.4")] 
public class DriverData 
{ 
    [XmlAttribute("series")] 
    public string series { get; set; } 

    [XmlAttribute("url")] 
    public string url { get; set; } 

    [XmlAttribute("limit")] 
    public int limit { get; set; } 

    [XmlAttribute("offset")] 
    public int offset { get; set; } 

    [XmlAttribute("total")] 
    public int total { get; set; } 

    [XmlElement("DriverTable")] 
    public DriverTable DriverTable { get; set; } 
}

Два свойства на Driver так же имеют XmlElement атрибуты вместо XmlAttribute атрибуты:

[XmlAttribute("driverId")] 
public string driverId { get; set; } 

[XmlAttribute("url")] 
public string url { get; set; }

Ваш десериализатор использует StringReader, который читает url. Это URI, а не ваш контент. Это должно быть:
```
using (TextReader reader = new StringReader(content)) 
```

Смотрите рабочий пример здесь: https://dotnetfiddle.net/bkYr7Q

источник

2015-06-13 20:45:26

Спасибо за ваше решение, он работает сейчас. – Sybren

Deserialize xml для объектов

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