我有以下代码:
[DataContract(Namespace = "")]
public class User
{
[DataMember]
public string UserName { get; set; }
[DataMember]
public string FullName { get; set; }
}
//Deserialization test
public void Test()
{
//CASE 1.
//string xml = "<User><UserName>john</UserName>" +
// "<FullName>John Lennon</FullName></User>";
//CASE 2.
string xml = "<User><FullName>John Lennon</FullName>" +
"<UserName>john</UserName></User>";
byte[] byteArray = Encoding.UTF8.GetBytes(xml);
User user = null;
using (MemoryStream stream = new MemoryStream(byteArray))
{
DataContractSerializer serializer =
new DataContractSerializer(typeof(User), "User", "");
user = (User)serializer.ReadObject(stream);
}
}
在案例1中,FullName属性未反序列化,但在案例2中,它被正确反序列化。为什么呢?
答案 0 :(得分:9)
因为订单很重要。除非您在DataMember属性中指定顺序,否则将使用字母顺序。
this MSDN article中解释了这一点。
通常,始终在DataMember属性上明确指定Order是一个好习惯:
[DataMember(IsRequired=true, Order=0)]
public string FullName { get; set; }
[DataMember(IsRequired=true, Order=1)]
public string UserName { get; set; }