我怎样才能的MembershipProvider类添加到我的.NET 4.0的项目在VS 2010中B2？

How can I add the MembershipProvider class to my .NET 4.0 project in VS 2010 B2?

我想自定义的MembershipProvider，但我不能没有加入这一类。请指导我通过这个过程。

I want to customize a MembershipProvider, but I cannot without adding this class. Please guide me through this process.

推荐答案

有趣。但是，生成错误是你的朋友;）

Interesting. However, build errors are your friend ;)

试图建立内置象你所说的，我得到了下面的生成错误类库：

Attempting to build a class library built as you describe, I get the following build error:

类型名称的MembershipProvider'找不到。此类型已转发到程序集​​System.Web.ApplicationServices，版本= 4.0.0.0，文化=中性公钥= 31bf3856ad364e35。考虑添加一个引用该程序集。

The type name 'MembershipProvider' could not be found. This type has been forwarded to assembly 'System.Web.ApplicationServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. Consider adding a reference to that assembly.

继指令（增加提及System.Web.ApplicationServices）让我继续如预期。

Following the instructions (adding a reference to System.Web.ApplicationServices) allows me to carry on as expected.