I've created a list called "Gallery" with the "<label class="forcheckbox" for="OnAdminMenu">Show on admin menu" option checked</label> with a title "Gallery", I've also created a content type called "Gallery Page" i've added the autoroute part to the Gallery Page with the pattern {Content.Container}/{Content.Slug} I have also selected "Automatically regenerate when editing content"

Now there is 2 navigation options to create a new gallery page:

1, from the "New" sub menu

2, From "Gallery" -> "Create New Gallery Page"

The difference in the 2 options above is whether or not the List the Gallery page will be contained under is preselected.

this can be seen from the url's

1, http://localhost:30320/OrchardLocal/Admin/Contents/Create/GalleryPage

2, http://localhost:30320/OrchardLocal/Admin/Contents/Create/GalleryPage?ContainerId=43&ReturnUrl=%2FOrchardLocal%2FAdmin%2FLists%2F43

Now if I create a Gallery page using 1, the autoroute does not get set correctly. It ignores the container and only uses the {Content.Slug}

If I create a gallery page using 2, the autoroute works correctly.

It appears that creating a Gallery page with the "ContainerId=43" query string results in the hidden field being populated and everything works fine <input id="CommonPart_ContainerId" name="CommonPart.ContainerId" type="hidden" value="43" />

If I use method 1 and I click publish for a second time the route is fixed as I have selected "Automatically regenerate when editing content" in the options.

I don't see this listed as a issue, surly someone else is using Lists and can verify this?

Using orchard 1.4.1

List is deprecated.

Is the new way to create a custom content type with a containable part?

Since Containable and Container are not deprecated, you can attached those parts to any content types and use them.

Yes, but going forward what will be the preferred way to create lists? It can be done with the Projector, only thing is that as far as I know you don't get the ability to nest the routes with autoroute i.e. {Content.Container}/{Content.Slug}

For now i've just used the Projector and the autoroute "gallery/{Content.Slug}"

Are Containable and Container soon to be deprecated?

Container and Containable are not going to be deprecated any time soon. You can use Taxonomies in most cases where you were using Lists.