Copy Constructor C#

C# does not provide a copy constructor. If you create a new object and want to copy the values from an existing object, you have to write the appropriate method yourself.
class Person
{
    private string name;
    private int age;
    // Copy constructor.
    public Person(Person previousPerson)
    {
        name = previousPerson.name;
        age = previousPerson.age;
    }
    // Instance constructor.
    public Person(string name, int age)
    {
        this.name = name;
        this.age = age;
    }
    // Get accessor.
    public string Details
    {
        get
        {
            return name + " is " + age.ToString();
        }
    }
}
class TestPerson
{
    static void Main()
    {
        // Create a new person object.
        Person person1 = new Person("George", 40);
        // Create another new object, copying person1.
        Person person2 = new Person(person1);
        System.Console.WriteLine(person2.Details);
    }
}