XSD DataSet - 在设计时和运行时使用来自另一个项目的连接字符串

We have a VS2010 solution that includes a web app (the startup project) and a class library for data access. The connection string is stored in the web app in a connectionString.config, which is referenced in the web app's web.config. The existing code in the class library uses System.Data.SqlClient to hit the database. This code gets the connections string via:We have a VS2010 solution that includes a web a