#region 私有方法/// <summary>/// 審核不同狀態的數據/// </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;}//分類批核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("不能批核本人提交的數據");}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

這里我利用泛型的模式將所有共用到的內容進行整合，這樣對應的不同對象所處理的內容一致，這樣所有的所對應的內容都可以一個處理，但具體還有沒有錯誤需要再執行修改就可以了。但整體的思路是不變的，這樣相同業務處理的所有數據都可以直接調用使用。

轉載于:https://www.cnblogs.com/Jack-S-Wang/p/11543677.html

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