MVC ViewBag Best Practice

Question

For the ViewBag, I heard it was a no-no to use. I would assume have the content from the ViewBag should be incorporated into a view model?

Question:

1. <

Answer 1

2.Are there situations where a ViewBag is absolutely necessary?

In some case you'll need to share your data from the Controller across the layouts, views and partial views. In this case, ViewBag is very helpful and I doubt there's any better way.