Did you know... Visual Studio 2008 Supports multi-targeting of the .NET Framework? - #160

MSDN Blog Postings » Did you know... Visual Studio 2008 Supports multi-targeting of the .NET Framework? - #160

Wed, 27 Feb 2008 16:01:05 GMT

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re: Did you know... Visual Studio 2008 Supports multi-targeting of the .NET Framework? - #160

ccatto — Wed, 27 Feb 2008 16:26:03 GMT

Hey Now Sara,

This is a good one to post for everyone even if it's a refresher.

Thx,

Catto

re: Did you know... Visual Studio 2008 Supports multi-targeting of the .NET Framework? - #160

derek — Wed, 27 Feb 2008 17:05:40 GMT

when I first heard about "multi-targeting" I was very excited. too bad it doesn't support the 1.1 framework. "multi-targeting" is a misleading term when you don't support all of the versions. I guess I'm stuck with vs2003.

re: Did you know... Visual Studio 2008 Supports multi-targeting of the .NET Framework? - #160

Eric Willeke — Wed, 27 Feb 2008 17:57:13 GMT

This is a nice capability. Unfortunately, some of the designers and code generators in 2008 output code that relies on classes only available in 3.5. This makes the feature of limited usefulness in many situations.

re: Did you know... Visual Studio 2008 Supports multi-targeting of the .NET Framework? - #160

S A — Wed, 27 Feb 2008 21:31:39 GMT

I am not sure I understand how this is supposed to work. I can see that VS 2008 can compile using the .NET 2.0 compilers as well as the later ones.

However, every time I open a project from VS 2005 in VS 2008, I am asked to upgrade. If I don't upgrade, it doesn't open.

Am I missing some step or configuration setting?

re: Did you know... Visual Studio 2008 Supports multi-targeting of the .NET Framework? - #160

saraford — Wed, 27 Feb 2008 22:29:44 GMT

@derek: Check out MSBee - an add-on to MSBuild that targets .NET 1.1. http://www.codeplex.com/MSBee

@S A: This is expected behavior because the solution files from VS2005 need to be modified to work in VS2008.

re: Did you know... Visual Studio 2008 Supports multi-targeting of the .NET Framework? - #160

Kyralessa — Thu, 28 Feb 2008 20:41:11 GMT

Can you point us to a place that talks about multitargeting in more detail? I have a client with .NET 2.0 (without SP1), and when I send him a .NET 2.0 project built with VS 2008, it doesn't work; but if I build the same project in VS 2005, it works fine for him. Clearly multitargeting doesn't work seamlessly in all cases. Have any Microsoft bloggers discussed what can cause this?

re: Did you know... Visual Studio 2008 Supports multi-targeting of the .NET Framework? - #160

S A — Fri, 29 Feb 2008 17:14:53 GMT

Sara:

Thanks for the reply.

What did ScottGu mean by "without always having to upgrade their existing projects"? Was he just talking about code and not the .sln and .prj files?

S A.

re: Did you know... Visual Studio 2008 Supports multi-targeting of the .NET Framework? - #160

wsyeager — Mon, 24 Mar 2008 22:40:42 GMT

According to the above, whenever I open a project compiled with the 2.0 framework, it would ask me to convert it; otherwise don't upgrade. However, with a project, it is forcing me to upgrade it to a VS2008 format.

Will this cause any problems in this multi-developer environment?

In addition, I also wanted to point out that our Visual Source Safe database contains project files. If I convert a VS 2005 project to be used in VS 2008, won't the project file be updated (to VS 2008 format)? Hence, the file will be checked back into VSS with this updated VS 2008 format. Nobody else in my development team would be able to edit the project with VS 2005.

The solution files are maintainted on our local computer. This won't present a problem, but it appears that the project files will.

Is there any way to simplify this confusion?

Visual Studio 2008 每日提示(十六)

xjb — Fri, 26 Dec 2008 05:32:34 GMT

本篇包括tip151-tip160http://www.watch-life.net/visual-studio/visual-studio-2008-tip-day-16.html#151、意外...