JSON Deserialization C# into Dictionary

Question

I am trying to deserialize the following data format, into some kind of data structure using Dictionaries, in C#.

The structure is the following:

"Obj1": {
    "Value": 0.6,
    "Data": {
        "Data1": 0.1,
        "Data2": 0.2,
        "Data3": 0.3,
        ...
    }
},
...

Does anyone have any idea on how I could accomplish this?

Thanks.

See https://stackoverflow.com/questions/20727787/deserialize-json-string-to-dictionarystring-object — Zotta, Jun 03 '15 at 09:34
possible duplicate of [How to parse json in C#?](http://stackoverflow.com/questions/6620165/how-to-parse-json-in-c) — Patrik, Jun 03 '15 at 09:42

score 0 · Answer 1 · answered Jun 03 '15 at 09:49

 Create Below Class and Deserialize it, but keep in mind this type of JSON not allowed in any language. See Data Objects it's in reapeated manners so none of object Deserialize it.

 public class Data
 {
  public double Data1 { get; set; }
  public double Data2 { get; set; }
  public double Data3 { get; set; }
 }

 public class Obj1
 {
   public double Value { get; set; }
   public Data Data { get; set; }
 }

public class RootObject
{
   public Obj1 Obj1 { get; set; }
}

score 0 · Answer 2 · answered Jun 03 '15 at 09:50

0

Assuming your json is an array like

[
    {
        "Obj1": {
            "Value": 0.6,
            "Data": {
                "Data1": 0.1,
                "Data2": 0.2,
                "Data3": 0.3
            }
        }
    }
]

putting it into a dictionary is very simple with JSON.net

public class RootObject
{
    public Obj1 Obj1 { get; set; }
}

public class Obj1
{
    public double Value { get; set; }
    public Data Data { get; set; }
}

public class Data
{
    public double Data1 { get; set; }
    public double Data2 { get; set; }
    public double Data3 { get; set; }
}


string json = "[{\"Obj1\":{\"Value\":0.6,\"Data\":{\"Data1\":0.1,\"Data2\":0.2,\"Data3\":0.3}}}]";

List<RootObject> result = JsonConvert.DeserializeObject<List<RootObject>>(json);
Dictionary<double, List<double>> dict = result.ToDictionary(key => key.Obj1.Value, value => new List<double> {value.Obj1.Data.Data1, value.Obj1.Data.Data2, value.Obj1.Data.Data3});

answered Jun 03 '15 at 09:50

stefankmitph

3,236
2
18
22

Well, actually my data doesn't really have only Data1, Data2 and Data3, as I showed in the initial post. Also It may have more than Obj1. – Marius Popa Jun 03 '15 at 09:56
so what is your json then? – stefankmitph Jun 03 '15 at 10:33
The reason why I added the "..." in my initial post, is because there might be more lines that I have there. So I can have Data1, Data2,...., DataN, where N might be 100, just for example. The same for Obj1. – Marius Popa Jun 03 '15 at 10:56
and data types will stay the same (f.e. double)? – stefankmitph Jun 03 '15 at 10:57
Yes...they will stay the same – Marius Popa Jun 03 '15 at 10:57

FlySoFast · Answer 3 · 2015-06-03T12:26:15.530

0

Newtonsoft Json.NET is The One.

You can download the .dll file and "add reference" or install it using Nuget in Visual studio. Then you could use it like this:

Dictionary<string,object> dict = JsonConvert.DeserializeObject<Dictionary<string,object>>(json);

edited Jun 03 '15 at 12:26

answered Jun 03 '15 at 09:54

FlySoFast

1,854
6
26
47

score 0 · Answer 4 · answered Jun 03 '15 at 13:12

Here is an example using Newtonsoft.Json

Create your type first:

public class Obj1
{
    public string Value { get; set; }
    public Dictionary<string,double> Data { get; set; }
}

Then use the following to serialize and deserialize

        //Json String
        var json = "{\"Value\":\"0.6\",\"Data\":{\"Data1\":0.1,\"Data2\":0.3,\"Data3\":0.3}}";

        //If you want to deserialize
        var objDeserialized = JsonConvert.DeserializeObject<Obj1>(json);


        //If you want to Serialize
        var objToSerialize = new Obj1()
        { 
            Value = "0.6",
            Data = new Dictionary<string, double>()
            {
                {"Data1",0.1 },
                {"Data2",0.3},
                {"Data3",0.3 }
            }
        };

        var serializedObj = JsonConvert.SerializeObject(objToSerialize);

JSON Deserialization C# into Dictionary

4 Answers4