VS2008针对.NET 2.0不使用C＃3的功能阻止我 [英] VS2008 targeting .NET 2.0 doesn't stop me from using C# 3 features
问题描述
我有一个VS2005的解决方案，并希望下车VS2005在新的一年。我主要是高兴的升级过程，并惊喜地看到，我的生成脚本大多仍然工作。
I had a VS2005 solution and wanted to get off VS2005 for the new year. I was mostly happy with the upgrade process and pleasantly surprised to see that my build scripts mostly still worked.
我的问题是围绕多目标的特点 - 我没有.NET 3.5安装在我的服务器上，所以我必须继续面向.NET 2.0。这工作，主要是，但我发现我可以做这样的事情
My question is around the multi-targeting feature - I don't have .NET 3.5 installed on my servers, so I have to continue to target .NET 2.0. That worked, mostly, but I found that I could do things like
var returnMe = "result: " + result.ToString();
......，目前仍是工程调试成功。
...and still debug the project successfully.
当我得到的code到构建服务器，构建失败，他说，VAR没有定义。
When I got that code up to the build server, the build failed, saying that "var" wasn't defined.
所以，这我应该期待？
- 在VS2008，针对.NET 2.0，当我尝试做应该抛出错误C＃3事情
- 在构建服务器，是知道我针对.NET 2.0，应该明白我在做什么和编译的东西到2.0兼容的二进制
任何想法？
推荐答案
这个问题似乎是，在构建服务器的没有正确的编译器。您可以在工作站上建立了吧？
The problem appears to be that the build server does not have the right compiler. You can build it on your workstation, right?
很多的.NET 3.0功能只是语法比特恢复到CLR 2 code在编译时。 VAR 就是其中之一 - 当它编译，编译器变种转换为相应类型
Many of the .NET 3.0 "features" are just syntax bits that revert to CLR 2 code at compile time. var is one of them -- when it compiles, the compiler converts var to the appropriate type.
有一个pretty的信息张贴在此，在<一个href="http://weblogs.asp.net/shahar/archive/2008/01/23/use-c-3-features-from-c-2-and-net-2-0-$c$c.aspx" rel="nofollow">http://weblogs.asp.net/shahar/archive/2008/01/23/use-c-3-features-from-c-2-and-net-2-0-$c$c.aspx
There is a pretty informative post on this at http://weblogs.asp.net/shahar/archive/2008/01/23/use-c-3-features-from-c-2-and-net-2-0-code.aspx
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