How to Convert the Object to a JSON String in C#
-
C# Program to Convert an Object to
JSONString UsingJavaScriptSerializer().Serialize()Method -
C# Program to Convert an Object to a
JSONString UsingJsonConvert.SerializeObject()Method -
C# Program to Convert an Object to
JSONString UsingJObject.FromObject()Method
In C#, information can be converted into a useful format called JavaScript Object Notation (JSON). It is converted because the JSON format is simpler to understand and easier to process.
This article focuses on the methods to convert a C# object into a JSON string.
C# Program to Convert an Object to JSON String Using JavaScriptSerializer().Serialize() Method
To implement this method, we first create a custom class object that contains the information. This object is then passed as a parameter to JavaScriptSerializer().Serialize() method. As a result, we get our information converted to a JSON string.
The correct syntax to use this method is as follows:
var jsonStringName = new JavaScriptSerializer();
var jsonStringResult = jsonStringName.Serialize(ObjectName);
Example Code:
using System;
using System.Web.Script.Serialization;
class Conversion {
static void Main() {
// Creating Custom Class Object
var Object =
new MyInformation { firstName = "Olivia", lastName = "Mason",
dateOfBirth = new DateOfBirth { year = 1999, month = 06, day = 19 } };
// Creating a JavaScriptSerializer Object
var jsonString = new JavaScriptSerializer();
// Use of Serialize() method
var jsonStringResult = jsonString.Serialize(Object);
Console.WriteLine(jsonStringResult);
}
}
// Custom Classes
public class MyInformation {
public string firstName;
public string lastName;
public DateOfBirth dateOfBirth;
}
public class DateOfBirth {
public int year;
public int month;
public int day;
}
Output:
{
"firstName":"Olivia",
"lastName":"Mason",
"dateOfBirth":
{
"year":"1999",
"month":"06",
"day":"19"
}
}
C# Program to Convert an Object to a JSON String Using JsonConvert.SerializeObject() Method
JsonConvert.SerializeObject() is a JsonConvert class method. It is used to convert a C# object into a JSON string. The object is passed as a parameter to this method.
The correct syntax to use this method is as follows:
JsonConvert.SerializeObject(ObjectName);
Example Code:
using System;
using Newtonsoft.Json;
namespace JSONConversion {
public class Conversion {
public static void Main(string[] args) {
// Creating custom class object
Name NewName = new Name { FirstName = "Olivia", LastName = "Mason" };
// Use of JsonConvert.SerializeObject()
string jsonString = JsonConvert.SerializeObject(NewName);
Console.WriteLine(jsonString);
}
// Creating custom class
public class Name {
public string FirstName;
public string LastName;
}
}
}
Output:
{
'FirstName': 'Olivia',
'LastName': 'Mason'
}
C# Program to Convert an Object to JSON String Using JObject.FromObject() Method
This method can be implemented in the earlier versions of .Net. It easily converts a C# object to a JSON string. The object name is passed as a parameter to this method.
The correct syntax to use this method is as follows:
JObject.FromObject(ObjectName);
Example Code:
using System;
using Newtonsoft.Json.Linq;
namespace JSONConversion {
public class Conversion {
public static void Main(string[] args) {
name Name = new name { firstname = "Olivia", lastname = "Mason" };
// Use of the method
var json = JObject.FromObject(Name);
Console.WriteLine(json);
}
public class name {
public string firstname;
public string lastname;
}
}
}
Output:
{
"firstname": "Olivia",
"lastname": "Mason"
}