TR GetObjectProperty<T, TR>(T p, Expression<Func<T, TR>> action)
        {
            var expression = (MemberExpression)action.Body;
            var name = expression.Member.Name;

            try
            {
                return (TR)TypeDescriptor.GetProperties(p).Find(name, true).GetValue(p);
            }
            catch
            {
                return (TR)GetDefault(TypeDescriptor.GetProperties(p).Find(name, true).PropertyType);
            }
        }

        public object GetDefault(Type t)
        {
            return this.GetType().GetMethod("GetDefaultGeneric").MakeGenericMethod(t).Invoke(this, null);
        }
        public T GetDefaultGeneric<T>()
        {
            if (typeof(T).IsValueType)
                return default(T);
            else
                return Activator.CreateInstance<T>();
        }