泛型應用

#region 私有方法
        /// <summary>
        /// 審覈不一樣狀態的數據
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="ctx"></param>
        /// <param name="entities"></param>
        /// <returns></returns>
        private int ApproveCheck<T>(eRASAppDevEntities ctx, IEnumerable<T> entities)
        {
            var en = typeof(T);
            string name = en.Name;
            var separated = Separate<T>(entities);

            //新增
            Approve<T>(ctx, separated[ActionStatus.Insert], entity =>
            {
                var newTD = new object();

                NCS.Utility.CopyObjectProperties(entity, newTD, ENTITY_KEY);
                ctx.AddObject(name, newTD);
                return true;
            });

            //更新
            Approve<T>(ctx, separated[ActionStatus.Update], entity =>
            {
                var target = ctx.ExecuteFunction<T>(name, null).FirstOrDefault(e => (Guid)en.GetProperty("ID").GetValue(e, null) == (Guid)en.GetProperty("ID").GetValue(entity, null));
                if (target == null)
                {
                    throw new BusinessException("正式數據不存在");
                }

                NCS.Utility.CopyObjectProperties(entity, target, ENTITY_KEY);

                return true;
            });

            //刪除
            Approve(ctx, separated[ActionStatus.Delete], entity =>
            {
                var target = ctx.ExecuteFunction<T>(name, null).FirstOrDefault(e => (Guid)en.GetProperty("ID").GetValue(e, null) == (Guid)en.GetProperty("ID").GetValue(entity, null));
                if (target == null)
                {
                    throw new BusinessException("正式數據不存在");
                }
                ctx.DeleteObject(target);
                return true;
            });

            return ctx.SaveChanges();
        }


        //數據分類
        private Dictionary<ActionStatus, List<T>> Separate<T>(IEnumerable<T> entities)
        {
            Type en = typeof(T);
            var result = new Dictionary<ActionStatus, List<T>>
            {
                { ActionStatus.Insert, new List<T>() },
                { ActionStatus.Update, new List<T>() },
                { ActionStatus.Delete, new List<T>() }
            };
            if (entities != null && entities.Count() != 0)
            {
                foreach (var entity in entities)
                {
                    PropertyInfo proInfo = en.GetProperty("ID");
                    if (entity == null || (Guid)proInfo.GetValue(entity,null)== Guid.Empty)
                        continue;

                    ActionStatus action;

                    if (Enum.TryParse((string)en.GetProperty("ActionStatus").GetValue(entity, null), out action))
                    {
                        result[action].Add(entity);
                    }
                }
            }
            return result;
        }

        //分類批覈
        private void Approve<T>(eRASAppDevEntities ctx, IEnumerable<T> entities,
            Func<T, bool> approve)
        {
            var en = typeof(T);
            if (entities == null || entities.Count() == 0)
                return;

            foreach (var entity in entities)
            {
                var pending = ctx.ExecuteFunction<T>(en.Name,null).FirstOrDefault(p => (Guid)en.GetProperty("ID").GetValue(p, null) == (Guid)en.GetProperty("ID").GetValue(entity,null));
                if (pending == null)
                {
                    throw new BusinessException("數據不存在");
                }

                string userID = SessionContext.Current.UserInformation.Id;
                if (userID == (string)en.GetProperty("MakeBy").GetValue(entity, null))
                {
                    throw new BusinessException("不能批覈本人提交的數據");
                }

                en.GetProperty("CheckBy").SetValue(entity,userID,null);
                en.GetProperty("CheckOn").SetValue(entity,DateTime.Now,null);
                en.GetProperty("AuthStatus").SetValue(entity,(int)AuthStatus.Approve,null);
                en.GetProperty("DbTransactionID").SetValue(entity, SessionContext.Current.DbTransactionId, null);
                var succeed = approve?.Invoke(entity);
                if (succeed.HasValue && !succeed.Value)
                    continue;

                ctx.DeleteObject(pending);
            }
        }

        #endregion

這裏我利用泛型的模式將全部共用到的內容進行整合，這樣對應的不一樣對象所處理的內容一致，這樣全部的所對應的內容均可以一個處理，但具體還有沒有錯誤須要再執行修改就能夠了。但總體的思路是不變的，這樣相同業務處理的全部數據均可以直接調用使用。