c# - Modify the behaviour of JSON.NET to serialize a collection of objects to an array of IDs -

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I want to modify JSON.NET so that when I want to serial a model from my API, An array sends an overall collection object.

For example: 

  class employee {public iconging

Then when I send it via webapp 

  request. Creatorespress (HTTTPTAS code.OK, new employee ()); Instead of:  
  {"address": [{"id": 1, "location": "XX", "postcode": " XX "}, {" id ": 2," location ":" XX "," postcode ":" XX "}]}  
 
 This sends just like this: 
 
  {"addresses": [1,2]}  
 
 I think this application should be wide and I do not want to modify it in a specific location. 
 
 How do I use JSON.NET serializer?

You can do that as a result you want to use a custom like this:

Class IdOnlyListConverter: JsonConverter {Public Override Bull CanConvert (Type Object Type) {Returns (Typ (IEnumerable) .IsAssignableFrom (objectType) & Object Type! = Typef (string)); } Public override zero WriteJson (JasonSraft Writer, Object Value, JasonSyrailizer Serializer) {Jere Array = New Zero (); Foreign objects (Object item in (Inimerable) value) {PropertyInfoIDProp = Item. Gettype () GetProperty ("id"); If (idapap! = Null & amp; idapap.Canred) {array.ad (jotokan.ofobject (idprof.get value (item, empty)); }} Array.WriteTo (author); } Public Override Bull CanRead {get {return false; }} Public Override Object ReadJson (Type JasonReader Reader, Object Type, Object Existing Value, JasonSiRiLiizer Serializer) {New Non Imulated Expression (); }}

In your model, wherever you have a collection where you only want the ID, specifying the collection code for the [JsonConverter] attribute For decorating custom converter, for example: 

  class employee {public string name {get; Set; } [Jason Synergracht (typef (ID Only List Convert))] Public Iconation & lt; Address & gt; {Receive addresses; Set; }} Category Address {Public Ent ID {get; Set; } Public string location {get; Set; } Public string postcode {get; Set; }}

When the archive is serialized, the converter will be used, and only id values ​​will be written. Demo: 

  class program {static zero main (string [] args) {employee employee = new employee {name = "jo", address = new list & lt; Address & gt; {New address {id = 1, location = "foo", postcode = "bar"}, new address {id = 2, location = "baz", postcode = "quux"}}}; String json = JsonConvert.SerializeObject (emp); Console.WriteLine (json); }}

Output: 

  {"name": "which", "address": [1,2]}

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