如何编译C＃代码作为库而不是可执行文件？

我在Visual Studio 2010中有一个C＃控制台应用程序。它有一个Main（）方法以及一堆实用程序类。我希望这些实用程序类可用于其他解决方案。从在线阅读看来，我需要将其编译为类库（DLL）。所以这就是我所做的：

I have a C# console application in Visual Studio 2010. It has a Main() method as well as a bunch of utility classes. I'd like those utility classes to be available to other solutions. From reading online it seems that I need to compile it as a Class Library (DLL). So here's what I did:

• 在Visual Studio中将Project> [ProjectName] Properties> Application改为Output type 控制台应用程序到类库


• 重建; ProjectName.dll是在bin / Debug中创建的。


• 创建了一个新的控制台应用程序


• 解决方案资源管理器>添加参考>浏览到ProjectName.DLL，选择

• Went in Visual Studio to "Project > [ProjectName] Properties > Application" and changed "Output type" from "Console Application" to "Class Library"
• Rebuilt; ProjectName.dll was created in bin/Debug.
• Created a new Console Application
• Solution Explorer > Add Reference > browse to ProjectName.DLL, select it.

但是，IntelliSense和对象浏览器都不能在该DLL内找到类。

However, neither IntelliSense nor the Object Browser could find the classes inside that DLL.

我尝试将几个不同的控制台应用程序重新编译为类库，并获得相同的结果。我也注意到，如果我最初创建解决方案作为类库，但不是如果我将它转换为一个以后，它是有效的。

I tried recompiling several different Console Applications as Class Libraries and got the same result. I also noticed that it works if I initially create the solution as a Class Library, but not if I convert it to one later.

任何提示？