从*里找到的答案。发现对最新的Newtownsoft的JSON序列化也同样适用。
https://*.com/questions/5818513/xml-serialization-hide-null-values
public bool ShouldSerializeMyNullableInt()
{
return MyNullableInt.HasValue;
}
举例子:
public class Person
{
public string Name {get;set;}
public int? Age {get;set;}
public bool ShouldSerializeAge()
{
return Age.HasValue;
}
}
用以下代码序列化:
Person thePerson = new Person(){Name="Chris"};
XmlSerializer xs = new XmlSerializer(typeof(Person));
StringWriter sw = new StringWriter();
xs.Serialize(sw, thePerson);
得到序列化结果,没有AGE
<Person xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<Name>Chris</Name>
</Person>
意外的收货,对Newtonsoft也同样有作用,一次代码,两处生效,很方便。