ASP.NET MVC3 EditorFor that looks for inheritance

gistfile1.cs

public static MvcHtmlString EditorForInherited<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression)
{
    if (htmlHelper.ViewContext.ViewData.Model == null)
        return htmlHelper.EditorFor(expression);

    var modelType = htmlHelper.ViewContext.ViewData.Model.GetType();

    if (modelType == typeof(TModel))
        return htmlHelper.EditorFor(expression);

    var propertyType = typeof(TProperty);
    var funcType = typeof(Func<,>)
        .MakeGenericType(modelType, propertyType);

    var parameterExpression = Expression.Parameter(modelType);
    var propertyExpression = Expression.Property(parameterExpression, ((MemberExpression)expression.Body).Member.Name);

    var newExpression = typeof(Expression)
        .GetMethods()
        .First(x => x.Name == "Lambda" && x.ContainsGenericParameters && x.GetParameters().Length == 2)
        .MakeGenericMethod(funcType)
        .Invoke(null, new object[] { propertyExpression, new ParameterExpression[] { parameterExpression } });

    var newHtmlHelper = (HtmlHelper)typeof(HtmlHelper<>)
        .MakeGenericType(modelType)
        .GetConstructor(new[] { typeof(ViewContext), typeof(IViewDataContainer), typeof(RouteCollection) })
        .Invoke(new object[] { htmlHelper.ViewContext, htmlHelper.ViewDataContainer, htmlHelper.RouteCollection });

    return (MvcHtmlString)
        typeof(EditorExtensions)
        .GetMethods()
        .Single(x => x.Name == "EditorFor" && x.GetParameters().Count() == 2)
        .MakeGenericMethod(modelType, propertyType)
        .Invoke(null, new object[] { newHtmlHelper, newExpression });
}

<input data-val="true" id="SomeProperty" name="SomeProperty" type="text">
<input data-val="true" data-val-required="The SomeProperty field is required." id="SomeProperty" name="SomeProperty" type="text">