Tentative de désérialisation de la liste des ints à l'aide de DataContractSerializer, réception inattendue InvalidOperationException

Question

Attentes: lecture de la liste des ints du fichier XML dans la liste appelée itemPool;

Résultat: "InvalidOperationException: Impossible d'ajouter le type System.Collections.Generic.List`1 [System.Int32] à la collecte de type connu Il existe déjà un type enregistré pour le nom XML http://schemas.microsoft.com/2003/10/Serialization/Arrays:ArrayOfint."

Je dois code suivant:

using System.Collections.Generic; 
using System.Runtime.Serialization; 

using Characters; 
using Items; 

[DataContract(Name ="Savefile", Namespace ="")] 
public class Savefile 
{ 
    [DataMember(Name ="Characters")] 
    public List<Character> characters = new List<Character>(); 

    [DataMember(Name = "ItemPool")] 
    public List<int> itemPool = new List<int>(); 

    public void Initialize() 
    { 
     foreach (Character c in characters) 
      c.Initialize(); 

     ItemPool.Load(itemPool.ToArray()); 
    } 
} 

Et une autre classe avec la méthode suivante:

public static void LoadFromSavefile() 
    { 
     DataContractSerializer serializer = new DataContractSerializer(typeof(Savefile)); 
     FileStream stream = new FileStream(Path.Combine(Application.dataPath, _savefilePath), FileMode.Open); 

     _currentSave = serializer.ReadObject(stream) as Savefile; 

     stream.Close(); 
    } 

Et le fichier xml-abo suivant que la classe Je lis à partir de.

<?xml version="1.0" encoding="utf-8"?> 
<Savefile xmlns:i="http://www.w3.org/2001/XMLSchema-instance"> 
    <Characters> 
    <Character> 
     <... not relevant clutter.../> 
    </Character> 
    </Characters> 
    <ItemPool> 
    <value>1</value> 
    </ItemPool> 
</Savefile> 

Answer 1

Édité à l'aide de DataContractSerializer.

using System; 
using Microsoft.VisualStudio.TestTools.UnitTesting; 
using System.Runtime.Serialization; 
using System.Collections.Generic; 
using System.IO; 
using System.Xml; 
using System.Xml.Serialization; 

namespace UnitTestProject1 { 

    [DataContract(Name = "Savefile", Namespace = "")] 
    public class Savefile { 
     [DataMember(Name = "Characters", Order = 0)] 
     public Characters Characters { get; private set; } 

     [DataMember(Name = "ItemPool", Order = 1)] 
     public Items ItemPool { get; private set; } 

    } 

    [CollectionDataContract(Name = "Characters", ItemName = "Character", Namespace = "")] 
    public class Characters : List<Character> { 

    } 

    public class Character { 
     public string Weapon { get; set; } 
     internal void Initialize() { 
      throw new NotImplementedException(); 
     } 
    } 

    [CollectionDataContract(Name = "ItemPool", ItemName = "Item", Namespace = "")] 
    public class Items : List<int> { 
     public int value { get; set; } 
    } 

    [TestClass] 
    public class UnitTestSerialization { 
     [TestMethod] 
     public void TestMethod1() { 
      DataContractSerializer serializer = new DataContractSerializer(typeof(Savefile)); 
      FileStream stream = new FileStream("SaveFile2.xml", FileMode.Open); 
      XmlDictionaryReader reader = XmlDictionaryReader.CreateTextReader(stream, new XmlDictionaryReaderQuotas()); 

      Savefile _currentSave = (Savefile)serializer.ReadObject(reader); 
      Assert.IsNotNull(_currentSave); 


      stream.Close(); 
     } 
    } 
} 

fichier xml

<?xml version="1.0" encoding="utf-8"?> 
<Savefile> 
    <Characters> 
    <Character> 
     <Weapon>Axe</Weapon> 
    </Character> 
    <Character> 
     <Weapon>Mace</Weapon> 
    </Character> 
    <Character> 

    </Character> 
    </Characters> 
    <ItemPool> 
    <Item>1</Item> 
    <Item>2</Item> 
    </ItemPool> 
</Savefile>