抓取web.config 的ConnectionString Code

 System.Configuration.Configuration rootWebConfig =
                System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("/MyWebSiteRoot");
        System.Configuration.ConnectionStringSettings connString;
        if (rootWebConfig.ConnectionStrings.ConnectionStrings.Count > 0)
        {
            connString =
                rootWebConfig.ConnectionStrings.ConnectionStrings["testConnectionString"];
            if (connString != null)
                Response.Write("connection string = "+
                    connString.ConnectionString);
            else
                Response.Write("No Northwind connection string");
        }