type to interface casting with out using CreateInstance

Try this:

using System;

using System.Reflection;

interface IPerson

{

string Name {get; set;}

int Age {get; set;}

}

class Person : IPerson

{

public string Name {get; set;}

public int Age {get; set;}

public Person(string name, int age)

{

Name = name;

Age = age;

}

class Program

{

static void Main()

{

Type pt = typeof(Person);

Type[] args = new Type[]{typeof(string), typeof(int)};

ConstructorInfo ci = pt.GetConstructor(args);

object[] args2 = new object[]{"John", 30};

IPerson ip = (IPerson)ci.Invoke(args2);

Console.WriteLine("Name = {0}, Age = {1}", ip.Name, ip.Age);

Console.ReadKey();

}

}

The output is:

Name = John, Age = 30