《EF基本操作类型（）》

 

    EF中登录的方法

 public Users Login(string name,string pwd)
        {
            Users list = db.Users.Where(p=>p.UName==name && p.Pwd==pwd).FirstOrDefault();
            LogHelper.TextWriter("执行登录操作");
            return list;
        }

修改

  public int Upt(T t)
        {
            db.Set<T>().Attach(t);
            db.Entry<T>(t).State = EntityState.Modified;
            return db.SaveChanges();
        }

       单删批删操作

 public int Del(int id)
        {
            var obj = db.Set<T>().Find(id);
            db.Set<T>().Remove(obj);
            return db.SaveChanges();
        }


        public int Dels(string ids,string TName)
        {
            string sql = string.Format("delete from {0} where Id in ({1})", TName, ids);
            return db.Database.ExecuteSqlCommand(sql);
        }

    public int TurnEmployee(int id)
        {
            var obj = All.Show().Find(id);
            obj.Z = DateTime.Now.ToString("yyyy-MM-dd");
            obj.L = "\\";
            obj.ZT = 1;
            return All.Upt(obj);
        }

      EF框架中存储存储过程分页的调用

 

 //添加
        [HttpPost]
        [Route("api/Insert")]
        public int Insert(DayWord word)
        {
            int flag = 0;
            using (var ef = new MyContext())
            {
                word.Dtime = DateTime.Now.ToString("yyyy-MM-dd");
                word.Dnum = "ss-410922123";
                ef.Entry(word).State = System.Data.Entity.EntityState.Added;
                flag = ef.SaveChanges();
                
            }
            return flag;
        }
        //查询日志类别
        [HttpGet]
        [Route("api/Search")]
        public List<DayType> Quert()
        {
            List<DayType> list = null;
            using (var ef = new MyContext())
            {
                list = (from s in ef.DayType select s).ToList();
                return list;
            }
        }

        [HttpGet]
        [Route("api/Page")]
        public PageModel PageData(int PageIndex = 1,int PageSize=2)
        {
            PageModel page = new PageModel();
            List<ViewModel> models = null;
            using (var ef = new MyContext())
            {
                //定义参数
                SqlParameter[] para = new SqlParameter[]
                {
                    new SqlParameter{ ParameterName="@PageIndex",SqlValue=PageIndex,SqlDbType = SqlDbType.Int},
                    new SqlParameter{ ParameterName="@PageSize",SqlValue=PageSize,SqlDbType = SqlDbType.Int},
                    new SqlParameter{ ParameterName="@PageCount",SqlDbType = SqlDbType.Int,Direction=ParameterDirection.Output},
                };
                
                models = ef.Database.SqlQuery<ViewModel>("exec Page_Week03 @PageIndex,@PageSize,@PageCount out", para).ToList();
                page.Count = Convert.ToInt32(para[2].Value.ToString());
                page.model = models;
                return page;
            }
        }