Fixing this situation with the VS 2010 RC is pretty
easy. Just do one of two things:
1) Use the Tools->Options menu command, select the Text
Editor->C# settings, and then check the two circled check boxes above
(Auto-list members and Parameter information). Intellisense will then be
turned on and work fine.
2) Install the version of Resharper that works with the VS
2010 RC. It then enables intellisense using its own mechanism.
We are modifying the profile import behavior in the final
release of VS 2010
We’ve heard reports of a few people running into this – and
since the behavior is pretty confusing we are modifying the profile import
behavior with the final release of VS 2010 to avoid it. If a plugin has
turned intellisense off with VS 2008, by default when you import the profile
into VS 2010 we will re-enable it. This will ensure that on a clean VS
2010 install intellisense always works by default.
Hope this helps,