SetValue to properites from inherited class - system.reflection

Question

I need to create a generic set accesor where i can pass the classname.classname.property and the value to be set.
I saw this question and has been answered but i can't implement it on my project.
link is Is it possible to pass in a property name as a string and assign a value to it?
In the sample code below, how can SetValue set a value for length and width?
public interface MPropertySettable { }
public static class PropertySettable {
public static void SetValue<T>(this MPropertySettable self, string name, T value) {
self.GetType().GetProperty(name).SetValue(self, value, null);
}
}
public class Foo : MPropertySettable {
public Taste Bar { get; set; }
public int Baz { get; set; }
}
public class Taste : BarSize {
public bool sweet {get; set;}
public bool sour {get; set;}
}
public class BarSize {
public int length { get; set;}
public int width { get; set;}
}
class Program {
static void Main() {
var foo = new Foo();
foo.SetValue("Bar", "And the answer is");
foo.SetValue("Baz", 42);
Console.WriteLine("{0} {1}", foo.Bar, foo.Baz);
}
}

Answer 1

You are trying to set a string value to a Taste object.
It works fine using a new instance of Taste
class Program {
static void Main() {
var foo = new Foo();
foo.SetValue("Bar", new Taste());
foo.SetValue("Baz", 42);
Console.WriteLine("{0} {1}", foo.Bar, foo.Baz);
}
}
It will work if BarSize would derive from MPropertySettable.
public interface MPropertySettable { }
public static class PropertySettable
{
public static void SetValue<T>(this MPropertySettable self, string name, T value) {
self.GetType().GetProperty(name).SetValue(self, value, null);
}
}
public class Foo : MPropertySettable
{
public Taste Bar { get; set; }
public int Baz { get; set; }
}
public class Taste : BarSize
{
public bool sweet { get; set; }
public bool sour { get; set; }
}
public class BarSize : MPropertySettable
{
public int length { get; set; }
public int width { get; set; }
}
class Program
{
static void Main() {
var barSize = new BarSize();
barSize.SetValue("length", 100);
barSize.SetValue("width", 42);
Console.WriteLine("{0} {1}", barSize.length, barSize.width);
}
}