How can I change property names when serializing with Json net

Question

I have some data in a C  DataSet object  I can serialize it right now using a Json net converter like this  DataSet data   new DataSet       do some work here to populate  data  string output   JsonConvert SerializeObject data     However  this uses the property names from data when printing to the  json file  I would like to change the property names to be something different  say  change  foo  to  bar     In the Json net documentation  under  Serializing and Deserializing JSON     Serialization Attributes  it says  JsonPropertyAttribute    allows the name to be customized   But there is no example  Does anyone know how to use a JsonPropertyAttribute to change the property name to something else    Direct link to documentation   Json net s documentation seems to be sparse  If you have a great example I ll try to get it added to the official documentation  Thanks

User · Answer

There is still another way to do it  which is using a particular NamingStrategy  which can be applied to a class or a property by decorating them with  JSonObject  or  JsonProperty    There are predefined naming strategies like CamelCaseNamingStrategy  but you can implement your own ones   The implementation of different naming strategies can be found here  https   github com JamesNK Newtonsoft Json tree master Src Newtonsoft Json Serialization

User · Answer

If you don t have access to the classes to change the properties  or don t want to always use the same rename property  renaming can also be done by creating a custom resolver    For example  if you have a class called MyCustomObject  that has a property called LongPropertyName  you can use a custom resolver like this     public class CustomDataContractResolver   DefaultContractResolver     public static readonly CustomDataContractResolver Instance   new CustomDataContractResolver        protected override JsonProperty CreateProperty MemberInfo member  MemberSerialization memberSerialization          var property   base CreateProperty member  memberSerialization       if  property DeclaringType    typeof MyCustomObject               if  property PropertyName Equals  LongPropertyName   StringComparison OrdinalIgnoreCase                   property PropertyName    Short                     return property          Then call for serialization and supply the resolver    var result   JsonConvert SerializeObject myCustomObjectInstance                  new JsonSerializerSettings   ContractResolver   CustomDataContractResolver Instance       And the result will be shortened to   Short   prop value   instead of   LongPropertyName   prop value    More info on custom resolvers here

User · Answer

You could decorate the property you wish controlling its name with the  JsonProperty  attribute which allows you to specify a different name   using Newtonsoft Json           JsonProperty PropertyName    FooBar    public string Foo   get  set      Documentation  Serialization Attributes

[c#] How can I change property names when serializing with Json.net?

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