This class DataContractJsonSerializer is available in the assembly System.ServiceModel.Web.dll.Add a reference to this in your project.
This is the data class which we are going to serialize ie converting from object to JSON format.
public class Employee
{
public string Name { get; set; }
public string Designation { get; set; }
}
private void btn_Click(object sender, RoutedEventArgs e)
{
Employee emp=new Employee(){ Name="Joy",Designation="Sr soft engg"};
DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(Employee));
MemoryStream stream=new MemoryStream();
StreamReader sr = new StreamReader(stream);
ser.WriteObject(stream, emp);
sr.BaseStream.Position = 0;
string s= sr.ReadToEnd();
MessageBox.Show(s);
}
Deserializing ie converting from JSON to object can be done using the method ser.ReadObject()