I was using this tutorial to create a custom editor https://our.umbraco.org/documentation/getting-started/backoffice/property-editors/built-in-property-editors/grid-layout/build-your-own-editor

However in my custom render, i want to query a list of nodes to render as a menu but since this inherits from the UmbracoViewPage it doesnt seem to work the same way i used to in an UmbracoTemplatePage.

Here is my code:

    @inherits Umbraco.Web.Mvc.UmbracoViewPage<dynamic>

@{

    var postNodes = Model.Content.AncestorOrSelf("Home").Descendants("Testimonial")
                    .Where(i => i.IsVisible()).Take(1);


    if (postNodes != null)
    {
        <section class="testimonials center">
            @foreach (var post in postNodes)
            {
                var text = post.GetPropertyValue<string>("bodyText", recurse: true);

                <blockquote>@text</blockquote>
                <span class="testimonial-attribution prominent">@post.Name</span>

            }

        </section>
    }
}

Error: error CS1977: Cannot use a lambda expression as an argument to a dynamically dispatched operation without first casting it to a delegate or expression tree type