使用 DataContractSerializer 在序列化中处理数组

Question

我有一个 asp.net web api 项目，但我遇到了用户模型的问题，它具有字符串 [] 角​​色作为属性，它没有按我的意愿序列化。

用户模型：

[DataContract(Namespace = "")]
public class User
{
    [DataMember(Order = 0)]
    public string UserName { get; set; }  //ro

    [DataMember(Order = 1)]
    public int CustomerID { get; set; } //ro

    [DataMember(Order = 2)]
    public string Email { get; set; }

    [DataMember(Order = 3)]
    public string Phone { get; set; }

    [DataMember(Order = 4)]
    public string Mobile { get; set; }

    [DataMember(Order = 5)]
    public string FullName { get; set; }

    [DataMember(Order = 6)]
    public List<string> Roles { get; set; }

    [DataMember(Order = 7)]
    public string Culture { get; set; }

    [DataMember(Order = 8)]
    public string Language { get; set; }

    [DataMember(Order = 9)]
    public string TimeZone { get; set; }

    [DataMember(Order = 10)]
    public DateTime Created { get; set; } //ro

}

当我得到请求的结果时，它类似于以下内容：-

<User xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
  <UserName>User1</UserName>
  <CustomerID>1234</CustomerID>
  <Email>abc@xyz.lmn</Email>
  <Phone/>
  <Mobile/>
  <FullName>XYZ</FullName>
  <Roles xmlns:d2p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
    <d2p1:string>AdminRole</d2p1:string>
    <d2p1:string>AlertsRole</d2p1:string>
  </Roles>
  <Culture>en-IN</Culture>
  <Language>en</Language>
  <Created>2014-04-21T11:26:22</Created>
</User>

但我希望 xml 如下：-

<User xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
  <UserName>User1</UserName>
  <CustomerID>1234</CustomerID>
  <Email>abc@xyz.lmn</Email>
  <Phone/>
  <Mobile/>
  <FullName>XYZ</FullName>
  <Roles>
    <string>Role1</string>
    <string>Role2</string>
  </Roles>
  <Culture>en-IN</Culture>
  <Language>en</Language>
  <Created>2014-04-21T11:26:22</Created>
</User>

请提出我可以实施的任何解决方案。

提前致谢

Answer 1

您可以通过创建具有相同命名空间的集合类型来做到这一点：

[CollectionDataContract(Namespace = "")]
public class StringList : List<string>
{
    public StringList() { }

    public StringList(IEnumerable<string> items) : base(items) { }
}

[DataContract(Namespace = "")]
public class User
{
    [DataMember(Order = 0)]
    public string UserName { get; set; }  //ro

    [DataMember(Order = 1)]
    public int CustomerID { get; set; } //ro

    [DataMember(Order = 2)]
    public string Email { get; set; }

    [DataMember(Order = 3)]
    public string Phone { get; set; }

    [DataMember(Order = 4)]
    public string Mobile { get; set; }

    [DataMember(Order = 5)]
    public string FullName { get; set; }

    [DataMember(Order = 6)]
    public StringList Roles { get; set; }

    [DataMember(Order = 7)]
    public string Culture { get; set; }

    [DataMember(Order = 8)]
    public string Language { get; set; }

    [DataMember(Order = 9)]
    public string TimeZone { get; set; }

    [DataMember(Order = 10)]
    public DateTime Created { get; set; } //ro
}