Applex

Visual Studio C# Integration
What does this feature get me?

A more sophisticated C# code writing environment.
Think smart autocompletion, computer assisted changes to your codefiles, smart syntax highlighting and more.

What’s the difference between Express and Pro?

VisualStudio C# 2008 is a product from Microsoft. It comes in an Express and a Profesional edition.
The Express edition is free, and you can download it from here: http://www.microsoft.com/express/vcsharp/
The Professional edition is not free, you can find out more information about it here: http://www.microsoft.com/visualstudio/en-us/products/professional/default.mspx

Unity’s VisualStudio integration has two components:
1) Unity creating and maintaining VisualStudio project files. Works with Express and with Profesional.
2) Unity automatically opening VisualStudio when you doubleclick on a script, or error in Unity. Works with Profesional only.

I’ve got Visual Studio Express, how do I use it?

In Unity, select from the menu Assets->Sync VisualStudio Project
Find the newly created .sln file in your Unity project (one folder up from your Assets folder)
Open that file with Visual Studio Express.
You can now edit all your script files, and switch back to Unity to use them.
I’ve got Visual Studio Profesional, how do I use it?

In Unity, go to Edit->Preferences, and make sure that Visual Studio is selected as your preferred external editor.
Doubleclick a C# file in your project. Visual Studio should automatically open that file for you.
You can edit the file, save, and switch back to Unity.
Does this work with other versions than Visual Studio C# 2008?

We’ve tested against Visual Studio 2008 and a prerelease version of Visual Studio 2010. At the time of this release, Visual Studio 2010 was not yet released, so we’re not sure if Unity will work nicely with Visual Studio 2010 once it is released.

A few things to watch out for:

Even though Visual Studio comes with its own C# compiler, and you can use it to check if you have errors in your c# scripts, Unity still uses its own C# compiler to compile your scripts. Using the Visual Studio compiler is still quite useful, because it means you don’t have to switch to Unity all the time to check if you have any errors or not.
Visual Studio’s C# compiler has some more features than Unity’s C# compiler currently has. This means that some code (especially newer c# features) will not give an error in Visual Studio but will give an error in Unity.
Unity automatically creates and maintains a Visual Studio .sln and .csproj file. Whenever somebody adds/renames/moves/deletes a file from within Unity, Unity regenerates the .sln and .csproj files. You can add files to your solution from Visual Studio as well. Unity will then import those new files, and the next time Unity creates the project files again, it will create them with this new file included.
Unity does not regenerate the Visual Studio project files after an AssetServer update, or a SVN update. You can manually ask Unity to regenerate the Visual Studio project files trough the menu: Assets->Sync VisualStudio Project.

按照他的说法，安装后，就可以直接找到VS2008，关键是有些时候，安装完成后，在Edit->Preferences中，找不到VS2008选项，怎么办？
解决方法：
点击Broswe，找到x:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe，就可以关联VS2008。据称，机器安装VS2008后，有些可以在Unity中直接找到，有些则不可以。