只有子元素的C＃對象序列化爲XML名稱空間和前綴

Question

如何在使用C＃序列化對象到XML時在子級別元素上設置名稱空間？

我想這個落得作爲XML輸出的XML：

<clsPerson> 
    <FirstName>Jeff</FirstName> 
    <MI>J</MI> 
    <LastName>Jefferson</LastName> 
    <ns1:Addresses xmlns="www.whatever.co.uk"> 
    <Home>Here</Home> 
    <Work>There</Work> 
    </Addresses> 
</clsPerson> 

我正在使用的代碼大多是從其他疑問採取，並且是如下：

using System; 
using System.IO; 
using System.Xml; 
using System.Xml.Serialization; 

public class clsPerson 
{ 
    public string FirstName; 
    public string MI; 
    public string LastName; 

    [XmlElement(Namespace = "www.whatever.co.uk")] 
    public clsPlaces Addresses; 

     public clsPerson() 
     { 
     clsPlaces clsPlaces = new clsPlaces(); 
     } 
} 

[XmlRoot(Namespace = "")] 
public class clsPlaces 
{ 
public string Home { get; set; } 
public string Work { get; set; } 
    } 

class class1 
{ 
static void Main(string[] args) 
{ 
    clsPerson p = new clsPerson(); 
    var xml = ""; 
    p.FirstName = "Jeff"; 
    p.MI = "J"; 
    p.LastName = "Jefefrson"; 
    p.Addresses = new clsPlaces(); 
    p.Addresses.Home = "Here"; 
    p.Addresses.Work = "There"; 

    var emptyNamepsaces = new XmlSerializerNamespaces(new[] {  XmlQualifiedName.Empty }); 
    var serializer = new XmlSerializer(p.GetType()); 
    var settings = new XmlWriterSettings(); 
    settings.Indent = true; 
    settings.OmitXmlDeclaration = true; 

    emptyNamepsaces.Add("ns", "www.whatever.co.uk"); 

    using (var stream = new StringWriter()) 
    using (var writer = XmlWriter.Create(stream, settings)) 
    { 
     serializer.Serialize(writer, p, emptyNamepsaces); 
     xml = stream.ToString(); 
    } 

     Console.WriteLine(xml) 
     Console.ReadLine(); 
    } 
} 

以上給出：

<clsPerson xmlns:ns="www.whatever.co.uk"> 
    <FirstName>Jeff</FirstName> 
    <MI>J</MI> 
    <LastName>Jefefrson</LastName> 
    <ns:Addresses> 
    <Home>Here</Home> 
    <Work>There</Work> 
    </ns:Addresses> 

如何才能獲取元素上的xmlns？我已經嘗試了所有我可以看到的搜索stackoverflow，並且無法找到/理解答案。

感謝

Answer 1

刪除此 - 添加命名空間將確保前綴被添加到根：

emptyNamepsaces.Add("ns", "www.whatever.co.uk"); 

的地址聲明會得到自動添加。您還需要從clsPlaces刪除空命名空間，否則爲Home和Work的namspaces將是不正確的：然後

public class clsPlaces 
{ 
    public string Home { get; set; } 
    public string Work { get; set; } 
} 

輸出將是這樣的：

<clsPerson> 
    <FirstName>Jeff</FirstName> 
    <MI>J</MI> 
    <LastName>Jefefrson</LastName> 
    <Addresses xmlns="www.whatever.co.uk"> 
    <Home>Here</Home> 
    <Work>There</Work> 
    </Addresses> 
</clsPerson> 

的演示中看到this fiddle。