Convert C# Object to Json Object

To create correct JSON first you need to prepare appropriate model. It can be something like that:

[DataContract]
public class Customer
{
    [DataMember(Name = "gors_descr")]
    public string ProductDescription { get; set; }

    [DataMember(Name = "b_name_first")]
    public string Fname { get; set; }

    [DataMember(Name = "b_name_last")]
    public string Lname { get; set; }
}

To be able to use Data attributes you will need to choose some other JSON serializer. For example DataContractJsonSerializer or Json.NET(I will use it in this example).

Customer customer = new Customer
{
    ProductDescription = tbDescription.Text,
    Fname = tbFName.Text,
    Lname = tbLName.Text
};


string creditApplicationJson = JsonConvert.SerializeObject(
    new
    {
        jsonCreditApplication = customer
    });

So jsonCreditApplication variable will be:

{
  "jsonCreditApplication": {
    "gors_descr": "Appliances",
    "b_name_first": "Marisol",
    "b_name_last": "Testcase"
  }
}

Another way.

using System;
using Newtonsoft.Json;

namespace MyNamepace
{
    public class MyCustomObject
    {
        public MyCustomObject()
        {
        }

        [JsonProperty(PropertyName = "my_int_one")]
        public int MyIntOne { get; set; }

        [JsonProperty(PropertyName = "my_bool_one")]
        public bool MyBoolOne { get; set; }

    }
}

and

        /* using Newtonsoft.Json; */

        MyCustomObject myobj = MyCustomObject();
        myobj.MyIntOne = 123;
        myobj.MyBoolOne = false;

        string jsonString = JsonConvert.SerializeObject(
            myobj,
            Formatting.None,
            new JsonSerializerSettings()
            {
                ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore
            });

see

http://www.newtonsoft.com/json/help/html/T_Newtonsoft_Json_JsonSerializerSettings.htm

My packages.config at the time of writing...though I'm sure future/latest versions will still support it:

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="Newtonsoft.Json" version="6.0.8" targetFramework="net45" />
</packages>