Behavior<T> still missing in WinRT with Win 8.1 and VS 2013 Preview?

Question

Over a year ago, there was this thread:

  Behavior<T> missing in WinRt?
  http://social.msdn.microsoft.com/Forums/windowsapps/en-US/5e4f5069-9d6f-4e7b-b6d5-4f9de15358f8/behaviort-missing-in-winrt

I am now using Windows 8.1 Preview and Visual Studio 2013 Preview and it seems Behavior<T> is still not supported.

It's great that the community stepped up and there's this awesome codeplex project: http://winrtbehaviors.codeplex.com/

But I was wondering if anyone at Microsoft knows if Behavior<T> will ever be supported in WinRT and Blend (for WinRT projects).

I'm not looking for any commitments and hard dates, just an idea if Behavior<T> is on Microsoft's radar for WinRT.

Answer 1

We cannot comment on anything that isn't already available in the public builds.

Sorry,
   Rob

Answer 2

Darn lawyers.

Answer 3

It was mentioned during one of the Build 2013 presentations that behaviors are coming later, as an SDK on top of the platform - http://channel9.msdn.com/Events/Build/2013/3-321

---

Blog: http://lunarfrog.com/blog

Answer 4

Ha yes, just to clarify for anyone reading this: around min 29 of http://channel9.msdn.com/Events/Build/2013/3-321, Unni mentions a few things:

• Behaviors not supported in VS 2013 Preview, will be available in RTM.
• Although the functionality is in the SDK, we will just have to install VS 2013 RTM and behaviors will be included out of the box.

He also goes into the reasons why behaviors were not implemented until now, including missing APIs in WinRT and a consistent experience for C++ and native developers.