How to Deserialize a JSON String into a C# List of Objects using JSON.NET?

How to Convert JSON String to C# Object List Using Newtonsoft's JSON.NET

Scenario:

You need to convert a JSON string into a list of C# objects, specifically using the MatrixModel class, which contains various properties. The JSON string includes data for multiple instances of MatrixModel, with only a subset of the properties populated.

Conversion Approach:

1. Utilize json2csharp.com to convert the JSON string into C# code that defines the class structure.
2. Use Newtonsoft.JSON's JsonConvert.DeserializeObject method to deserialize the JSON string into the C# object list.

Implementation:

1. Generate C# Model:

   • Go to json2csharp.com
   • Paste the JSON string into the input field
   • Click "Generate" to create the corresponding C# code

2. Deserialize JSON:

   • Create a C# property to represent the JSON string, such as string json.
   • Deserialize the JSON string into a list of MatrixModel objects using the following code:

   • var models = JsonConvert.DeserializeObject<List<MatrixModel>>(json);

     Example:

     Assuming the following JSON string:

     {
     "questions": [
      {
      "QuestionId": 49,
      "QuestionText": "What's your name?",
      "S9": "Pratik"
      },
      {
      "QuestionId": 51,
      "QuestionText": "Are you smart?",
      "S7": "True"
      }
     ]
     }

     Generated C# Model:

     public class MatrixModel
     {
      public int QuestionId { get; set; }
      public string QuestionText { get; set; }
      public string S9 { get; set; }
      public string S7 { get; set; }
     }

public class RootObject
{

public List<MatrixModel> questions { get; set; }

}

**Deserialization:**

string json = "{...}";
var models = JsonConvert.DeserializeObject>(json);

**Note:**

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