Is it possible to display a view from another controller?
Say for example I have a CategoriesController and a Category/NotFound.aspx view. While in the CategoriesController, I can easly return View("NotFound").
Now say I have a ProductsController and an action and view to add a product. However, this action requires that we have a Category to add the Product to. For example, Products/Add/?catid=10.
If I am not able to find the Category based on catid, I want to show the NotFound view from the Categories controller instead of creating a CategoryNotFound view under the Products controller.
Is this possible or am I structuring things in the wrong way? Is there a good way to do this?
Yes. By default, ASP.NET MVC checks first in \Views\[Controller_Dir]\, but after that, if it doesn't find the view, it checks in \Views\Shared.
The shared directory is there specifically to share Views across multiple controllers. Just add your View to the Shared subdirectory and you're good to go.
If you do return View("~/Views/Wherever/SomeDir/MyView.aspx") You can return any View you'd like.