ASP.NET MVC Preview 4
18 Jul 2008
I spent yesterday updating our largest application to MVC Preview 4. As part of the upgrade, I also made some tweaks to MvcContrib's ConventionController (documentation not yet updated).
Here's a summary of some of the things that have changed:
- TempData finally works with out of process session state
- Filters that implement IExceptionFilter can easily catch exceptions thrown by other filters
- The RescueAttribute in MvcContrib is now an IExceptionFilter, so it can be used with classes that don't inherit from ConventionController
- Multiple filters can now have the same sort order. This makes it easy to define a 'default' order, and then have other filters execute before/after
- TempData is now testable without needing to mock anything
- All the ComponentController hackery is gone - RenderAction is a much nicer alternative
- The bug that broke URL generation is fixed
Here's what sucks with Preview 4:
- SubDataItems still doesn't seem to work properly
- AuthorizeAttribute, OutputCacheAttribute and HandleError attribute are sealed and have no virtual methods
- The new built in Ajax support doesn't seem to be easily replaceable with alternative libraries
