asp.net三层架构+linq to entity实现

 本来打算用linq to entity+普通三层架构来做，但是发现如果使用了entity实体的话，三层好像没什么实际作用了。

首先定义DAL层：

 

public static bool add(user_info model,string name,string pass,string truename,int power)
      {
          model.User_info_name = name;
          model.User_info_password = pass;
          model.User_true_name = truename;
          model.Power_id = power;
          db.user_info.AddObject(model);
          return SaveChangesWithDB();
      }

      public static bool add2(user_info model)
      {
          db.user_info.AddObject(model);
          return SaveChangesWithDB();
      }

再定义BLL层：

 

public static bool add(user_info model, string name, string pass, string truename, int power)
       {
           return DAL.Userinfo.add(model,name,pass,truename,power);
       }

       public static bool add2(user_info model)
       {
           return DAL.Userinfo.add2(model);
       }

最后在WEB层下引用：

 

protected void Button1_Click(object sender, EventArgs e)
   {
       string username = this.name.Text;
       string password = this.pass.Text;
       string truename = this.tname.Text;
       int powerid = 1;
       user_info model = new user_info();
       BLL.Userinfo bl = new BLL.Userinfo();
       BLL.Userinfo.add(model,username,password,truename,powerid);

       user_info model2 = new user_info();
       model2.User_info_name = username;
       model2.User_info_password = password;
       model2.User_true_name = truename;
       model2.Power_id = 1;
       BLL.Userinfo.add2(model2);
   }