using System;

using System.Reflection;

​

​

public interface ISomeInterface { int IProperty { get; }  }

​

public class SomeClass : ISomeInterface 

{ 

    public int ClassProperty { get; set; } //I need this too

​

    public int IProperty { get; set; }

}

​

public class Program

{

    static public void Main(string[] args)

    {

        var v = (ISomeInterface)new SomeClass();

​

        TestMethod(v);

    }

​

    static void TestMethod<T>(T value) where T : ISomeInterface

    {

        var props1 = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);

        foreach (var p in props1)

        {

            Console.WriteLine("Using typeof(T): {0}", p.Name);

        }

        var props2 = value.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);

        foreach (var p in props2)

        {

            Console.WriteLine("Using value.GetType(): {0}", p.Name);

        }

    }

}

​