EntityFramework中的OptimisticConcurrencyException [英] OptimisticConcurrencyException in EntityFramework

问题描述

EntityFramework中的OptimisticConcurrencyException



我正在使用实体框架4.3.0，同时调用context.SaveChanges（），抛出异常消息...



System.Data.OptimisticConcurrencyException - >消息：存储更新，插入或删除语句影响了意外的行数（0）。自实体加载后，实体可能已被修改或删除。刷新ObjectStateManager条目。



i用Google搜索解决方案，我发现我必须刷新上下文，例如，



context.Refresh（RefreshMode refreshMode，Object entity）



但是，上下文没有任何Refresh方法..

* EF（v4.3.0）不包含此功能？

*所以应该采用另一种方法来修复它...



提前谢谢。

OptimisticConcurrencyException in EntityFramework

I am using entity framework 4.3.0, while calling context.SaveChanges(), exception thrown with message...

System.Data.OptimisticConcurrencyException--> Message: Store update, insert, or delete statement affected an unexpected number of rows (0). Entities may have been modified or deleted since entities were loaded. Refresh ObjectStateManager entries.

i googled for solution and i found that i have to refresh the context like,

context.Refresh(RefreshMode refreshMode, Object entity)

but, there is no any Refresh method for the context..
* EF(v4.3.0) does not include this functionality?
* so what should be another way to fix it..

thanks in advance.

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