C# to JSON Converter: Convert C# classes to JSON

// This will be serialized into a JSON Address object
public class Address
{
    public string Street { get; set; }
    public string City { get; set; }
    public string State { get; set; }
    public string PostalCode = "99999"; // initialize properties to generate sample data

    public Address()
    { 
        // or set properties in default constructor to generate sample data
        this.Street = "4627 Sunset Ave"; this.City = "San Diego"; this.State = "CA"; this.PostalCode = "92115";
    }
}

// This will be serialized into a JSON Contact object
public class Contact
{
    public int Id { get; set; }
    public string Name { get; set; }
    public DateTime? BirthDate { get; set; }
    public string Phone { get; set; }
    public Address Address { get; set; }

    public Contact()
    { 
        this.Id = 7113; this.Name = "James Norris"; this.BirthDate = new DateTime(1977, 5, 13); this.Phone = "488-555-1212";
        this.Address = new Address();
    }
}

// This will be serialized into a JSON array of Contact objects
public class ContactsCollection
{
    public ICollection<Contact> Contacts { get; set; }

    public ContactsCollection()
    {
        // initialize array of objects in default constructor to generate sample data
        this.Contacts = new List<Contact>
        {
            new Contact { Id = 7113, Name = "James Norris", BirthDate = new DateTime(1977, 5, 13), Phone = "488-555-1212", 
                          Address = new Address { Street = "4627 Sunset Ave", City = "San Diego", State = "CA", PostalCode = "92115" } }, 
            new Contact { Id = 7114, Name = "Mary Lamb", BirthDate =  new DateTime(1974, 10, 21), Phone = "337-555-1212",
                          Address = new Address { Street = "1111 Industrial Way", City = "Dallas", State = "TX", PostalCode = "49245" } }, 
            new Contact { Id = 7115, Name = "Robert Shoemaker", BirthDate = new DateTime(1968, 2, 8), Phone ="643-555-1212",
                          Address = null }
        };
    }
}

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C# to JSON

Convert C# model classes to JSON objects

The rules:

Note: This tool is intended to consume reasonably simple C# class hierarchies that have no dependencies on external libraries. Anything too complex may generate errors.