How do you get the all properties of a class and its base classes (up the hierarchy) with Reflection? (C#)

Use this:

PropertyInfo[] info = obj.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);

EDIT: Of course the correct answer is that of Jay. GetProperties() without parameters is equivalent to GetProperties(BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static ). The BindingFlags.FlattenHierarchy plays no role here.

I don't think it's that complicated.

If you remove the BindingFlags parameter to GetProperties, I think you get the results you're looking for:

    class B
    {
        public int MyProperty { get; set; }
    }

    class C : B
    {
        public string MyProperty2 { get; set; }
    }

    static void Main(string[] args)
    {
        PropertyInfo[] info = new C().GetType().GetProperties();
        foreach (var pi in info)
        {
            Console.WriteLine(pi.Name);
        }
    }

produces

    MyProperty2
    MyProperty