I did some experimenting with DocType compositions myself. Can't you just pass the model that inherits all those interfaces? Why would you only want to pass an interface? 

Ah yes, forgot that bit.  Because my layout view structure is Master - Sidebar - Home.  Sidebar will be the layout for multiple views, so I was hoping it would work in a similar way that you can pass an interface or class to Model.Content.Children<T>() to filter the results.

I guess I am just being a bit lazy and I should implement a SidebarModel that can be included/inherited in the top-level classes that need it - I was just wondering if it could be done with the structure provided by the ModelsBuilder alone.  Or just get property values the old fashioned way in that particular layout (boo!)

Keep up the great work!  Umbraco 7.2 + Hybrid Framework rocks

I'm struggling with this in my head too.

Ran into this today. Did anyone find some sort of solution?

In my case, I've found three occasions when this issue occurs (in the most annoying order ;-)): 1) When I want to pass the model to a partial view that is included on various templates 2) When I need to access model properties in a template's parent template (using layout = ...) 3) When I want to document type to be rendered using an alternate template that can also be used got another document type.

It must be somehow possible to let the view be a little less restrictive on the model that's passed into it ;-)

Hi,

I asked a similar question, where I wanted to convert different nodes which all use composition "FeaturedImage". However, I still haven't heard of a way to do this but it might be included in the next update for Hybrid.

The best way I have found for dealing with this situation is to use a partial view, creating a surface controller, where I create a custom model and send this to the partial view.

Top of Partial:

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

the custom Model:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Umbraco.Core.Models;
using Umbraco.Extensions.Models.Generated;

namespace Umbraco.Extensions.Models.Custom
{
    public class BookPopupPartial
    {
        public Image BackgroundImage { get; set; }
        public String Title { get; set; }
        public IHtmlString Terms { get; set; }
        public UrlPicker.Umbraco.Models.UrlPicker TicketLink { get; set; }
        public IPublishedContent TermsLink { get; set; }
    }
}

and finally the SurfaceRenderMvcController:

 using System.Web;
using System.Web.Mvc;
using Umbraco.Core;
using Umbraco.Core.Models;
using Umbraco.Extensions.Controllers.Base;
using Umbraco.Extensions.BLL;
using Umbraco.Extensions.Enums;
using Umbraco.Extensions.Models;
using Umbraco.Extensions.Models.Custom;
using Umbraco.Extensions.Models.Generated;
using Umbraco.Extensions.Utilities;
using Umbraco.Web;

namespace Umbraco.Extensions.Controllers
{
    public class BookPopupController : SurfaceRenderMvcController
    {
        [ChildActionOnly]
        public ActionResult GetBookPopup()
        {
            var model = new BookPopupPartial()
            {
                BackgroundImage = CurrentPage.GetPropertyValue<Image>("image"),
                Title =  CurrentPage.GetPropertyValue<String>("title"),
                Terms =  CurrentPage.GetPropertyValue<IHtmlString>("terms"),
                TicketLink = CurrentPage.GetPropertyValue<UrlPicker.Umbraco.Models.UrlPicker>("ticketLink"),
                TermsLink = CurrentPage.GetPropertyValue<IPublishedContent>("termLink"),
            };

            return PartialView("book-popup", model);

        }
    }
}

This is how I have been doing it recently and means I can easily reuse the partial when ever a page uses this composition.

Hopefully this is helpful

Thanks

Maxi

Ran into the issue today (again) when I want to use a single template for two documenttypes.

Creating an interface that bind the two documenttypes didn't work unfortunately.

@inherits Umbraco.Web.Mvc.UmbracoViewPage<MasterContentModel<INewsContentModel>>

This throws an InvalidOperationException

The model item passed into the dictionary is of type 'ContentModels.MasterContentModel`1[ContentModels.NewsContentModel]', but this dictionary requires a model item of type 'ContentModels.MasterContentModel`1[ContentModels.INewsContentModel]'. 

Did anyone find a workable solution for this?

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