XML序列化 - 是否可以用這種方式序列化模型？

Question

我有以下型號：

public class ABaseObject 
{ 
    private Guid id = Guid.NewGuid(); 

    public ABaseObject() 
    { 
    } 

    public Guid ID { get { return id; } } 
} 

public class ADerivedObject : ABaseObject 
{ 
    public ADerivedObject() 
    { 
    } 

    public string Name { get; set; } 
} 

public class AObjectCollection<T> 
{ 
    private List<T> items = new List<T>(); 

    public AObjectCollection() 
    { 
    } 

    public IEnumerable<T> Items { get { return items; } } 
    public void Add(T item) 
    { 
     items.Add(item); 
    } 

    public void Save(string filePath) 
    { 
     FileStream writer = new FileStream(filePath, FileMode.Create); 
     DataContractSerializer s = new DataContractSerializer(typeof(T)); 
     s.WriteObject(writer, this); 
     writer.Close(); 
    } 

    public void Load(string filePath) 
    { 
     FileStream fs = new FileStream(filePath, FileMode.Open); 
     XmlDictionaryReader reader = XmlDictionaryReader.CreateTextReader(fs, new XmlDictionaryReaderQuotas()); 
     DataContractSerializer ser = new DataContractSerializer(typeof(T)); 

     // Deserialize the data and read it from the instance. 
     T deserializedObj = (T)ser.ReadObject(reader, true); 
     reader.Close(); 
     fs.Close(); 
    } 
} 

所以基本上我希望能夠做到以下幾點：

var der = new ADerivedObject(); 
der.Name = "Test"; 
var col = new AObjectCollection<ADerivedObject>(); 
col.Add(der); 
col.Save("C:\MyCollection.xml"); 
... 
var col2 = new AObjectCollection<ADerivedObject>(); 
col2.Load("C:\MyCollection.xml"); 

當連載它應該是這個樣子：

<Collection> 
    <Item> 
     <ID></ID> 
     <Name></Name> 
    </Item> 
</Collection> 

我已經玩過DataContracts和XmlSerializer，但我似乎無法找到一種方法來做到這一點。

Answer 1

此代碼：

public class ABaseObject 
{ 
    public ABaseObject() { } 
    public Guid ID { get; set;} 
} 

[XmlType("Item")] 
public class ADerivedObject : ABaseObject 
{ 
    public ADerivedObject() {} 
    public string Name { get; set; } 
} 

[XmlType("Collection")] 
public class AObjectCollection<T> 
{ 
    private System.Xml.Serialization.XmlSerializerNamespaces ns; 
    private System.Xml.Serialization.XmlSerializer s; 

    public AObjectCollection() 
    { 
     ns= new System.Xml.Serialization.XmlSerializerNamespaces(); 
     ns.Add("", ""); 
     s= new System.Xml.Serialization.XmlSerializer(this.GetType()); 
     Items = new List<T>(); 
    } 

    public List<T> Items { get; set; } 
    public DateTime LastSaved { get;set; } 

    public void Add(T item) 
    { 
     Items.Add(item); 
    } 

    public void Save(string filePath) 
    { 
     LastSaved= System.DateTime.Now; 
     var xmlws = new System.Xml.XmlWriterSettings { OmitXmlDeclaration = true, Indent= true }; 

     using (var writer = System.Xml.XmlWriter.Create(filePath, xmlws)) 
     { 
      s.Serialize(writer, this, ns); 
     } 
    } 

    public static AObjectCollection<T2> Load<T2>(string filepath) 
    { 
     AObjectCollection<T2> obj; 
     try 
     { 
      var s= new System.Xml.Serialization.XmlSerializer(typeof(AObjectCollection<T2>)); 
      using(System.IO.StreamReader reader= System.IO.File.OpenText(filepath)) 
      { 
       obj= (AObjectCollection<T2>) s.Deserialize(reader); 
      } 
     } 
     catch 
     { 
      obj= new AObjectCollection<T2>(); 
     } 

     return obj; 
    } 
} 

產生這樣的輸出：

<Collection> 
    <Items> 
    <Item> 
     <ID>00000000-0000-0000-0000-000000000000</ID> 
     <Name>Test</Name> 
    </Item> 
    </Items> 
    <LastSaved>2010-02-04T07:32:05.812-05:00</LastSaved> 
</Collection> 

有辦法調整XML以除去收集/項目層。搜索其他收集/序列化問題。