using System;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

         var obj = new

            {

                Foo = new

                {

                    Bar = new

                    {

                        Baz = "foo"

                    }

                }

            };

​

        var foo = GetPropertyValue(obj, "Foo.Bar.Baz");

        Console.WriteLine(foo);

    }

​

    public static string? GetPropertyValue(object source, string propertyName)

    {

        try

        {

            return GetInnerProp(source, propertyName) as string;

        }

        catch

        {

            return null;

        }

    }

​

    private static object GetInnerProp(object source, string propertyName)

    {

        if (propertyName.Contains('.'))

        {

            var propertyNames = propertyName.Split(".");

            var firstProp = propertyNames.First();

            var newSource = source.GetType().GetProperty(firstProp).GetValue(source, null);

            var rest = string.Join(".", propertyNames.Skip(1));

            return GetInnerProp(newSource, rest);

        }

​

        return source.GetType().GetProperty(propertyName).GetValue(source, null);

    }

}