LinqDemo\Default.aspx
........\web.config
........\Default.aspx.cs
........\App_Code\Linq\Staff.designer.cs
........\........\BLL\StaffBLL.cs
........\........\Linq\Staff.dbml
........\........\....\Staff.dbml.layout
........\DB\DutyDemo_log.ldf
........\..\DutyDemo.mdf
........\App_Data\DutyDemo.sql
........\....Code\BLL
........\........\Linq
........\App_Code
........\App_Data
........\DB
LinqDemo