C# Deserialize JSON to dynamic ExpandoObject()

The Microsoft System.Text.Json.Serialization.JsonSerializer cannot (yet) convert JSON into dynamic objects. But good ole Newtonsoft.Json can.

The conversion is simple too:

// This is my json string
string s = "
{
    "label": "MyLabel",
    "values": {
      "Key1": "Value1",
      "Key2": "Value2",
      "Key2": "Value3",
    }
  }";
  
// This is the conversion
dynamic json = 
  JsonConvert.DeserializeObject<ExpandoObject>(
    s, 
    new ExpandoObjectConverter()
  );

After the conversion, you can work with the dynamic object as you wish:

string label = json.label;
foreach (var value in json.values)
  Console.WriteLine($"{value.Key}: {value.Value}");

MORE TO READ:

• How to serialize and deserialize (marshal and unmarshal) JSON in .NET from Microsoft
• Json.Net Documentation from newtonsoft.com
• C# Using Newtonsoft and dynamic ExpandoObject to convert one Json to another from briancaos
• Creating dynamic arrays and lists using Dynamic and ExpandoObject in C# from briancaos
• C# – Deserialize JSON to dynamic object by makolyte