C# 将 JSON 对象序列化为一个类

Question

I am working on Json Obejct deserielize to a class in .net VS2015 on win 7.

public class1
{
    [JsonProperty(TypeNameHandling = TypeNameHandling.Objects)]
    public Class1 data1;
    public Class2 data2;
}

public abstract Class1 
{
    some functions

}

public subClass1 : Class1
{
        public string myData1 { get; set; }
        public string myData2 { get; set; }

}

In my code of deserierlizing:

var mo = MyObject as JObject;

ParentMyClass = mo.ToObject<MyClass>();

I know that an abstract class cannot be instantiated. So, subClass1 (which is one of the implementation of Class1) is serialized. But, subClass1 is null after deserialized.

Did I do something wrong ?

UPDATED: because the code of the classes is too complex, I just simplified the logic.

Answer 1

When you call mo.ToObject<Class1>(); Newtonsoft.Json library will try to create an instance down the line. The problem is you cannot instantiate a abstract. You can see this your self by calling var x = new Class1(); somewhere in you code. This will give you error.

That being said, one thing you could do is create another class that inherits the abstract class.

public class NonAbstract : Class1 {}

this way you will have a class that can be instantiated. And then you can do this.

mo.ToObject<NonAbstract >();