Been away from using MVC for a couple years, now I'm back and I have to build a dynamic collection in the UI (you know, user clicks a button and adds a new widget then submits the list).

Back in the day we used Phil Haacks "BeginCollectionItem" html helper. I'm wondering if either:

1. MVC 5 / Razor has a built in way of handling this,

2. There isn't, but there is this slick library that all the cool kids use, or

3. The answer is 2 and the library is still Haacks BCI helper.

Thanks.