Json NET serialize object with root name

Question

In my web app I m using Newtonsoft Json and I have following object   Newtonsoft Json JsonObject Title    MyCar    public class Car        Newtonsoft Json JsonProperty PropertyName    name        public string Name get set         Newtonsoft Json JsonProperty PropertyName    owner        public string Owner get set       and I want serialize them with root name  class name   This is desired format using     MyCar          name    Ford       owner    John Smith         I know that I can do that with anonymous object  but is any property or another way in Newtonsoft Json library

User · Answer

string Json   JsonConvert SerializeObject new Car   Name    Ford   Owner    John Smith     Formatting None     for the root element use GlobalConfiguration

User · Answer

Use anonymous class  Shape your model the way you want using anonymous classes   var root   new         car   new                 name    Ford            owner    Henry            string json   JsonConvert SerializeObject root

User · Answer

Sorry  my english is not that good  But i like to improve the upvoted answers  I think that using Dictionary is more simple and clean   class Program               static void Main string   args                        agencia ag1   new agencia                                 name    Iquique                   data   new object     new object     Lucas   20    new object     Fernando   15                                agencia ag2   new agencia                                 name    Valparaiso                   data   new object     new object      Rems   20    new object      Perex   15                                agencia agn   new agencia                                 name    Santiago                   data   new object     new object      Jhon   20    new object      Karma   15                                  Dictionary lt string  agencia gt  dic   new Dictionary lt string  agencia gt                                   Iquique   ag1                       Valparaiso   ag2                       Santiago   agn                               string da   Newtonsoft Json JsonConvert SerializeObject dic                Console WriteLine da               Console ReadLine                           public class agencia               public string name   get  set            public object   data   get  set            This code generate the following json  This is desired format            Iquique             name   Iquique          data                                Lucas               20                                       Fernando               15                              Valparaiso             name   Valparaiso          data                                Rems               20                                       Perex               15                              Santiago             name   Santiago          data                                Jhon               20                                       Karma               15

User · Answer

I hope this help     Sample of Data Contract    DataContract Name  customer    internal class Customer      DataMember Name  email    internal string Email   get  set       DataMember Name  name    internal string Name   get  set         This is an extension method useful for your case   public static string JsonSerialize lt T gt  this T o      MemoryStream jsonStream   new MemoryStream      var serializer   new System Runtime Serialization Json DataContractJsonSerializer typeof T      serializer WriteObject jsonStream  o      var jsonString   System Text Encoding ASCII GetString jsonStream ToArray        var props   o GetType   GetCustomAttributes false     var rootName   string Empty    foreach  var prop in props          if    prop is DataContractAttribute   continue      rootName     DataContractAttribute prop  Name      break        jsonStream Close      jsonStream Dispose       if   string IsNullOrEmpty rootName   jsonString   string Format        0      1       rootName  jsonString     return jsonString       Sample of usage  var customer   new customer    Name  John   Email  john domain com     var serializedObject   customer JsonSerialize

User · Answer

Newtonsoft Json JsonObject Title    root    public class TestMain   this is the only attrib you need to add to get your code working

User · Answer

You can easily create your own serializer  var car   new Car     Name    Ford   Owner    John Smith     string json   Serialize car       string Serialize lt T gt  T o        var attr   o GetType   GetCustomAttribute typeof JsonObjectAttribute   as JsonObjectAttribute       var jv   JValue FromObject o        return new JObject new JProperty attr Title  jv   ToString

User · Answer

I found an easy way to render this out    simply declare a dynamic object and assign the first item within the dynamic object to be your collection class   This example assumes you re using Newtonsoft Json  private class YourModelClass       public string firstName   get  set        public string lastName   get  set       var collection   new List lt YourModelClass gt      var collectionWrapper   new        myRoot   collection      var output   JsonConvert SerializeObject collectionWrapper     What you should end up with is something like this     myRoot     firstName   John    lastName    Citizen

User · Answer

A very simple approach for me is just to create 2 classes    public class ClassB       public string id  get  set        public string name  get  set        public int status   get  set        public DateTime  updated at   get  set       public class ClassAList       public IList lt ClassB gt  root name  get  set         And when you going to do serialization   var classAList   new ClassAList            assign some value       var jsonString   JsonConvert SerializeObject classAList    Lastly  you will see your desired result as the following        root name                  id    1001          name    1000001          status   1010         updated at    2016-09-28 16 10 48                      id    1002          name    1000002          status   1050         updated at    2016-09-28 16 55 55                Hope this helps

User · Answer

Well  you can at least tell Json NET to include the type name  http   www newtonsoft com json help html T Newtonsoft Json TypeNameHandling htm   Newtonsoft Json JsonSerializer jser   new Newtonsoft Json JsonSerializer    jser TypeNameHandling   TypeNameHandling Objects   The type will be included at the beginning in the   type  property of the object   This is not exactly what you are looking for  but it was good enough for me when facing a similiar problem

User · Answer

Writing a custom JsonConverter is another approach mentioned in similar questions  However  due to nature of how JsonConverter is designed  using that approach for this question is tricky  as you need to be careful with the WriteJson implementation to avoid getting into infinite recursion  JSON Net throws StackOverflowException when using  JsonConvert      One possible implementation   public override void WriteJson JsonWriter writer  object value  JsonSerializer serializer          JToken t   JToken FromObject value      do not use this  leads to stack overflow     JsonObjectContract contract    JsonObjectContract serializer ContractResolver ResolveContract value GetType          writer WriteStartObject        writer WritePropertyName value GetType   Name       writer WriteStartObject        foreach  var property in contract Properties                   this removes any property with null value         var propertyValue   property ValueProvider GetValue value           if  propertyValue    null  continue           writer WritePropertyName property PropertyName           serializer Serialize writer  propertyValue             writer WriteValue JsonConvert SerializeObject property ValueProvider GetValue value        this adds escaped quotes           writer WriteEndObject        writer WriteEndObject

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