Composite Views in ASP.NET MVC

gistfile1.cs

    public interface IWidget
    {
        string Title { get; }
        IHtmlString Render(HtmlHelper htmlHelper);
    }

    public class LatestTweetsWidget : IWidget
    {
        public string Title { get { return "Latest Tweets"; } }
        public string Handle { get; set; }

        public IHtmlString Render(HtmlHelper htmlHelper)
        {
            return htmlHelper.Partial("Tweets", this);
        }
    }

    public class WidgetPage
    {
        public List<IWidget> Widgets { get; set; }

        public WidgetPage()
        {
            Widgets = new List<IWidget>();
        }
    }

    public class WidgetsController : Controller
    {
        public ActionResult Page(string id)
        {
            // assume loading page from somewhere
            var page = new WidgetPage();

            // assume loading and building widgets (somehow)
            page.Widgets.Add(new LatestTweetsWidget { Handle = "benfosterdev" });

            return View(page);
        }
    }

// View:

@model WidgetPage

@foreach (var widget in Model.Widgets) {
        
    <div class="widget">
        <h2>@widget.Title</h2>
        @widget.Render(Html)
    </div>
        
}