使用的XMLSerializer deserialise與元素的數組類型相同的根元素

Question

我有下面的XML我試圖用XmlSerialiser到deserialise：

<playlist> 
    <id>43712</id> 
    <title>Eleven | Eleven</title> 
    <description>Eleven</description> 
    <creationDate>2010-12-01T17:54:44</creationDate> 
    <lastModifiedDate>2011-05-27T01:32:58</lastModifiedDate> 
    <status>ACTIVE</status> 
    <syndicatedPartners/> 
    <mediaList/> 
    <childPlaylists> 
    <playlist> 
     <id>43781</id> 
     <title>TV Shows | TV Shows</title> 
     <description></description> 
     <creationDate>2010-12-10T16:37:00</creationDate> 
     <lastModifiedDate>2011-05-09T06:03:09</lastModifiedDate> 
     <status>ACTIVE</status> 
     <syndicatedPartners/> 
     <imagePath>http://media.movideo.com/images/112/playlist/43781/</imagePath> 
     <defaultImage> 
     <url>http://media.movideo.com/images/112/playlist/43781/96x128.png</url> 
     <height>128</height> 
     <width>96</width> 
     </defaultImage> 
    </playlist> 
    <playlist> 
     <id>43787</id> 
     <title>Movies | Movies</title> 
     <description></description> 
     <creationDate>2010-12-10T16:49:13</creationDate> 
     <lastModifiedDate>2011-05-06T01:39:23</lastModifiedDate> 
     <status>ACTIVE</status> 
     <syndicatedPartners/> 
     <imagePath>http://media.movideo.com/images/112/playlist/43787/</imagePath> 
     <defaultImage> 
     <url>http://media.movideo.com/images/112/playlist/43787/96x128.png</url> 
     <height>128</height> 
     <width>96</width> 
     </defaultImage> 
    </playlist> 
    <playlist> 
     <id>44020</id> 
     <title>Eleven | This Week On Eleven</title> 
     <description></description> 
     <creationDate>2011-01-05T08:17:09</creationDate> 
     <lastModifiedDate>2011-05-30T08:47:13</lastModifiedDate> 
     <status>ACTIVE</status> 
     <syndicatedPartners/> 
     <imagePath>http://media.movideo.com/images/112/playlist/44020/</imagePath> 
     <defaultImage> 
     <url>http://media.movideo.com/images/112/playlist/44020/96x128.png</url> 
     <height>128</height> 
     <width>96</width> 
     </defaultImage> 
    </playlist> 
    <playlist> 
     <id>44758</id> 
     <title>Fashion | Australian Fashion Week</title> 
     <description></description> 
     <creationDate>2011-04-28T23:58:01</creationDate> 
     <lastModifiedDate>2011-05-06T05:48:22</lastModifiedDate> 
     <status>ACTIVE</status> 
     <syndicatedPartners/> 
     <imagePath>http://media.movideo.com/images/140/playlist/44758/</imagePath> 
     <defaultImage> 
     <url>http://media.movideo.com/images/140/playlist/44758/96x128.png</url> 
     <height>128</height> 
     <width>96</width> 
     </defaultImage> 
    </playlist> 
    </childPlaylists> 
    <imagePath>http://media.movideo.com/images/112/playlist/43712/</imagePath> 
    <defaultImage> 
    <url>http://media.movideo.com/images/112/playlist/43712/96x128.png</url> 
    <height>128</height> 
    <width>96</width> 
    </defaultImage> 
</playlist> 

在我的C＃代碼，我有：

public class Response 
{ 
    public bool success; 
    public string responseType; 
} 

[XmlRootAttribute("playlist", Namespace="", IsNullable=false)] 
public class PlaylistResponse : Response 
{ 
    public int id; 
    public string title; 
    public string description; 
    public List<PlaylistResponse> childPlaylists; 
} 

XmlReader reader = XmlReader.Create(responseStream); 
XmlSerializer serializer = new XmlSerializer(typeof(PlaylistResponse)); 
PlaylistResponse response = (PlaylistResponse)serializer.Deserialize(reader); 
state.callback((Response) response, state.data); 

但childPlaylist似乎總是空的。

反序列化這種XML的正確方法是什麼，特別是使用多個「childPlaylists」？

謝謝。

Answer 1

見this question and answer。

---

[XmlRootAttribute("playlist")] 
public class PlaylistResponse 
{ 
    public int id; 
    public string title; 
    public string description; 

    [XmlArray(ElementName="childPlaylists")] 
    [XmlArrayItem(typeof(PlaylistResponse), ElementName="playlist")] 
    public PlaylistResponse[] ChildPlaylists; 
} 

XmlReader reader = XmlReader.Create(new StringReader(xml)); // your xml above 
XmlSerializer serializer = new XmlSerializer(typeof(PlaylistResponse)); 
PlaylistResponse response = (PlaylistResponse)serializer.Deserialize(reader); 

int count = response.ChildPlaylists.Length; // 4 

Answer 2

僅將標記PlaylistResponse作爲根元素與XmlRootAttribute。也添加XmlElementAttribute。

Answer 3

添加XmlArrayItem屬性命名元素的名稱和XmlRoot指定的根元素的名稱：

[XmlRoot("playlist")] 
public class PlaylistResponse : Response 
{ 
    public int id; 
    public string title; 
    public string description; 
    [XmlArrayItem("playlist")] 
    public List<PlaylistResponse> childPlaylists; 
}