[Serializable]
    public class ProjectInfo
    {
        [Key]
        public int Id { get; set; }                     //id 主键
        public string SysModuleId { get; set; }           //所属目录 外键
        public int DesignerId { get; set; }             //Designer表外键DesignerId
        public string ProjectName { get; set; }         //项目名称
        public string Describe { get; set; }            //描述
        public DateTime InputTime { get; set; }         //录入时间
        public int Sort { get; set; }                   //排序 默认0
        public int Hot { get; set; }                    //热门  默认0
        public int Top { get; set; }                    //首页 默认0

        public virtual Designer Designer { get; set; }
    }

    [Serializable]
    public partial class Designer
    {
        [Key]
        public int Id { get; set; }                     //id 主键
        public string RealName { get; set; }            //姓名
        public string HeadPortrait { get; set; }        //头像
        public string Position { get; set; }            //职位
        public int Sex { get; set; }                    //性别
        public DateTime DateOfBirth { get; set; }       //出生日期
        public string Testimonials { get; set; }        //获奖
        public string Diploma { get; set; }             //教育背景
        public string Introduction { get; set; }        //个人介绍
        public string Remark { get; set; }              //备注
        public DateTime InputTime { get; set; }         //数据录入时间
        public int Sort { get; set; }                   //排名

        public virtual ICollection<ProjectInfo> ProjectInfoes { get; set; }
    }

        public bool AddEntity(T entity)
        {
            m_DbContext.Set<T>().Add(entity);
            m_DbContext.Entry<T>(entity).State = EntityState.Added;
            return m_DbContext.SaveChanges() > 0;
        }

        public IQueryable<T> GetPageEntity<S>(int pageSize, int pageIndex, out int total, Func<T, bool> whereLambda, bool isAsc, Func<T, S> orderByLambda)
        {
            var temp = m_DbContext.Set<T>().Where<T>(whereLambda);
            total = temp.Count();
            //排序获取当前页的数据
            if (isAsc)
            {
                return
                    temp.OrderBy<T, S>(orderByLambda)
                        .Skip<T>(pageSize * (pageIndex - 1))
                        .Take<T>(pageSize).AsQueryable();
            }
            else
            {
                return
                    temp.OrderByDescending<T, S>(orderByLambda)
                      .Skip<T>(pageSize * (pageIndex - 1))
                      .Take<T>(pageSize).AsQueryable();
            }
        }