Parsing JSON using Json.net

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I don’t know about JSON.NET, but it works fine with JavaScriptSerializer from System.Web.Extensions.dll (.NET 3.5 SP1):

using System.Collections.Generic;
using System.Web.Script.Serialization;
public class NameTypePair
{
    public string OBJECT_NAME { get; set; }
    public string OBJECT_TYPE { get; set; }
}
public enum PositionType { none, point }
public class Ref
{
    public int id { get; set; }
}
public class SubObject
{
    public NameTypePair attributes { get; set; }
    public Position position { get; set; }
}
public class Position
{
    public int x { get; set; }
    public int y { get; set; }
}
public class Foo
{
    public Foo() { objects = new List<SubObject>(); }
    public string displayFieldName { get; set; }
    public NameTypePair fieldAliases { get; set; }
    public PositionType positionType { get; set; }
    public Ref reference { get; set; }
    public List<SubObject> objects { get; set; }
}
static class Program
{

    const string json = @"{
  ""displayFieldName"" : ""OBJECT_NAME"", 
  ""fieldAliases"" : {
    ""OBJECT_NAME"" : ""OBJECT_NAME"", 
    ""OBJECT_TYPE"" : ""OBJECT_TYPE""
  }, 
  ""positionType"" : ""point"", 
  ""reference"" : {
    ""id"" : 1111
  }, 
  ""objects"" : [
    {
      ""attributes"" : {
        ""OBJECT_NAME"" : ""test name"", 
        ""OBJECT_TYPE"" : ""test type""
      }, 
      ""position"" : 
      {
        ""x"" : 5, 
        ""y"" : 7
      }
    }
  ]
}";


    static void Main()
    {
        JavaScriptSerializer ser = new JavaScriptSerializer();
        Foo foo = ser.Deserialize<Foo>(json);
    }


}

Edit:

Json.NET works using the same JSON and classes.

Foo foo = JsonConvert.DeserializeObject<Foo>(json);

Link: Serializing and Deserializing JSON with Json.NET

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