Convert Json String to C# Object

Convert JSON String To C# Object

It looks like you're trying to deserialize to a raw object. You could create a Class that represents the object that you're converting to. This would be most useful in cases where you're dealing with larger objects or JSON Strings.

For instance:

  class Test {

      String test; 

      String getTest() { return test; }
      void setTest(String test) { this.test = test; }

  }

Then your deserialization code would be:

   JavaScriptSerializer json_serializer = new JavaScriptSerializer();
   Test routes_list = 
          (Test)json_serializer.DeserializeObject("{ \"test\":\"some data\" }");

More information can be found in this tutorial:
http://www.codeproject.com/Tips/79435/Deserialize-JSON-with-Csharp.aspx

Convert JSON String to JSON Object c#

JObject defines method Parse for this:

JObject json = JObject.Parse(str);

You might want to refer to Json.NET documentation.

How to convert an embedded JSON string to a JSON Object in C#

If you know the json response, you can create a model class for it. On VS 2022 you can right click on editor and do paste special Edit --> Paste special --> Paste JSON as Classes. You should get something like below.

public class Model 
{
    public object[] paymentId { get; set; }
    public object[] paymentRequestId { get; set; }
    public object[][][] paymentAmount { get; set; }
    public object[] paymentStatus { get; set; }
    public object[][][] result { get; set; }
}

After using that Model class in your code, your code should look like below

using System.Text.Json;

public Model InquiryPaymentAPI(string id)
{
   
    string paymentInfo = PaymentInquiry.IPayment(id);
    return JsonSerializer.Deserialize<Model>(paymentInfo);

}

In C# convert Json string to Json Object

You can remodel your POCO:

public class ProductEntity
{
    [JsonProperty("products")]
    public List<Product> Products { get; set; }
}

public class Product
{
    [JsonProperty("id")]
    public string Id { get; set; }

    [JsonProperty("name")]
    public string Name { get; set; }

    [JsonProperty("price")]
    public string PricePerUnit { get; set; }
}

And then de-serialize it as follows:

internal class Solution1
{
    static void Main(string[] args)
    {
        string str = @"
        {
             'products': [
               {
                'id': '1',
                'name': 'red apple',
                'price': '1.53'
               },
               {
                 'id': '2',
                 'name': 'green walnut',
                 'price': '0.25'
               },
               {
                 'id': '3',
                 'name': 'avocado',
                 'price': '0.33'
               }
             ]
          }";

        ProductEntity result = JsonConvert.DeserializeObject<ProductEntity>(str);
    }
}

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What is best way to convert json string into array of objects?

I recommend to install Newtonsoft.Json via the NuGet package manager. Then decorate the members of the POCO class with the JsonProperty attribute to tell the serializer which property matches to a specific JSON key:

public class MyJsonObject
{
  [JsonProperty("Value")]
  string Value { get; set; }

  [JsonProperty("Name")]
  string Name { get; set; }
}

You can the deserialize the JSON to a corresponding object instance:

var jsonString = "[{\"Value\": \"1\", \"Name\": \"One\"}, {\"Value\": \"2\", \"Name\": \"Two\"}]";
List<MyJsonObject> myJsonObjects = JsonConvert.DeserializeObject<List<MyJsonObject>>(jsonString);

How to Convert JSON object to Custom C# object?

A good way to use JSON in C# is with JSON.NET

Quick Starts & API Documentation from JSON.NET - Official site help you work with it.

An example of how to use it:

public class User
{
    public User(string json)
    {
        JObject jObject = JObject.Parse(json);
        JToken jUser = jObject["user"];
        name = (string) jUser["name"];
        teamname = (string) jUser["teamname"];
        email = (string) jUser["email"];
        players = jUser["players"].ToArray();
    }

    public string name { get; set; }
    public string teamname { get; set; }
    public string email { get; set; }
    public Array players { get; set; }
}

// Use
private void Run()
{
    string json = @"{""user"":{""name"":""asdf"",""teamname"":""b"",""email"":""c"",""players"":[""1"",""2""]}}";
    User user = new User(json);

    Console.WriteLine("Name : " + user.name);
    Console.WriteLine("Teamname : " + user.teamname);
    Console.WriteLine("Email : " + user.email);
    Console.WriteLine("Players:");

    foreach (var player in user.players)
        Console.WriteLine(player);
 }

Cannot convert JSON string to List of object

This is because you need a container class at the top that has this list of orders as a property inside of it:

public class MyData
{
     public List<FoodItem> Orders { get; set; }
{

var data = JsonConvert.DeserializeObject<MyData>(strProductsInCart);
var items = data.Orders;

Also, make sure you have public properties that match the name in the JSON. They can be Pascal case, too.

convert jsonstring to objects c#

Your string is not valid JSON, so making it valid JSON is the first step to process it quickly. The easiest thing to do is to make it a JSON array:

string jsonArray = "["
                   + string.Join(", ", json.Split(new string[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries))
                   + "]";

From then on it is straightforward (see my related answer: Easiest way to parse JSON response):

var result = JsonConvert.DeserializeObject<User[]>(jsonArray);

Another option is to split the lines yourself, and parse and add the items to a list manually.

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