Model+DAL+BLL

namespace Model { public class exam { [Key] public int id { get; set; } public string Name { get; set; } public string number { get; set; } public string department { get; set; } public string state { get; set; } public string begintime { get; set; } public string endtime { get; set; } public string remark { get; set; } } } namespace Model { public class Page { public int pages { get; set; } public int pagecount { get; set; } public object data { get; set; } } } namespace DAL { public class dalexan { fdbcontext db = new fdbcontext(); public int add(exam model) { db.exam.Add(model); return db.SaveChanges(); } public List select( ) { return db.exam.ToList(); } } } namespace BLL { public class bllexam { dalexan dal = new dalexan(); public int add(exam model) { return dal.add(model); } public List select() { return dal.select(); } } }