How to deserialize list of objects from json

Question

Thats my class.

class MyClass1 : IInterface1
{
    public MyClass1()
    {
        this.Interface2s = new List<IInterface2>();
    }

    public string strI1 { get; set; }
    public int intI1 { get; set; }
    public IList<IInterface2> Interface2s { get; set; }
    public int intC1 { get; set; }
}

In application I serialized it with some random values. Result:

{
  "strI1": "strI1",
  "intI1": 2,
  "Interface2s": [
    {
      "intI2": 111
    },
    {
      "intI2": 222
    },
    {
      "intI2": 333
    }
  ]
}

Then, i want to deserialize that string back, but I'm loosing values in my IList

result of deserialization next:
{
  "strI1": "strI1",
  "intI1": 2,
  "Interface2s": [
    {
      "intI2": 0
    },
    {
      "intI2": 0
    },
    {
      "intI2": 0
    }
  ]
}

To deserialize interface I'm using that example http://www.newtonsoft.com/json/help/html/DeserializeWithDependencyInjection.htm

I need to deserialize values in list too. Any suggestions?

There are a very large number of these questions on stackoverflow already. Does none of those answers help you? Please try, and I am sure you can figure it out — jumps4fun
– jumps4fun, Commented Dec 21, 2016 at 9:18
Or Convert JSON String To C# Object or How to Convert JSON object to Custom C# object? or about 100 other questions. Please check to see if a question has been asked already before asking. — Liam
– Liam, Commented Dec 21, 2016 at 9:22
Can you show IInterface2. Btw deserialization to interface is problem. — Mertuarez
– Mertuarez, Commented Dec 21, 2016 at 9:56

gmn · Accepted Answer · 2016-12-21 09:18:45Z

2

My advice is just use http://www.newtonsoft.com/json

JsonConvert.SerializeObject(target)

and to deserialize

JsonConvert.DeSerializeObject<MyClass1>(target)

And it should just be as simple as that.

answered Dec 21, 2016 at 9:18

gmn

4,3194 gold badges28 silver badges48 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

Rise Against Over a year ago

Sorry for poor example, but I'm using json.net and there is the problem

Rise Against Over a year ago

'JsonConvert.DeSerializeObject<MyClass1>(target)' returns me MyClass and List in it with 3 empty objects.

gmn Over a year ago

Try experimenting with newtonsoft.com/json/help/html/serializetypenamehandling.htm during serialization. That might be the issue, it could be deserializing the interface to the wrong type, so by embedding type information, that could solve your issue. @RiseAgainst

Rise Against Over a year ago

I found the issue, but not solution... The issue is that json deserealize interface, so there is no values. I nedd him to deserialize class, that inherit my interface.

gmn Over a year ago

Yes @RiseAgainst thats why you need to tell Json.Net to add the type information when it serializes. Then it will know which types to deserialize

Collectives™ on Stack Overflow

How to deserialize list of objects from json

1 Answer 1

5 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

5 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related