How to Convert Json string into C# object in MVC4

Question

I have a json string which is submitted on controller using Model string value property. I want to convert this json string into c# generic list object.

Below is my json string

{
 "MLIDandRackPosition": [
 {
 "MLID": "27",
 "PositionInRack": "3"
 },
 {
 "MLID": "24",
 "PositionInRack": "4"
 }
 ]
}

Below is my class

 public class MLIDandRackPosition
 {
 public int MLID { get; set; }
 public int PositionInRack { get; set; }
 }

I want a List of MLIDandRackPosition class from json string on controller action method.

Please help

• MacGyver: It's easy to find same question: stackoverflow.com/questions/2546138/…
• Kutyel: possible duplicate of Parse JSON in C#

Answer 1

With JSON.NET you can do that in a single line:

MLIDandRackPosition myObj = JsonConvert.DeserializeObject<MLIDandRackPosition>(myString);

See http://www.newtonsoft.com/json/help/html/Introduction.htm for more about JSON.NET.

• Avia Afer: Mr. Dictus very helpful please add 0 after the +1 as i couldn't find the option in SO UI .

Answer 2

Your object will bind correctly to

public ActionResult SomeAction(IEnumerable<MLIDandRackPosition> MLIDandRackPosition)

If you set the following ajax parameters

var data = { "MLIDandRackPosition": [ { "MLID": "27", "PositionInRack": "3" }, { "MLID": "24", "PositionInRack": "4" } ] };
$.ajax({
 ...
 traditional: true,
 contentType: "application/json; charset=utf-8",
 data: JSON.stringify(data)
})

although I would recommend changing the parameter name (to say model) and var data = { "model": [ { "MLID": ....] };

Answer 3

I strongly recommend you the NewtonSoft library for the .NET platform, is the best when talking of JSON serialization.