实体框架SaveChanges正在保存不变的记录(通过存储过程映射) [英] Entity Framework SaveChanges is saving unchanged record (via stored procedure mapping)

问题描述

我在附加了2个实体的上下文中调用saveChanges.实体"A"收到对其值的更新，"B"不变.

I'm calling saveChanges on a context that has 2 entities attached. Entity 'A' receives updates to it's values, 'B' does not change.

当我在SaveChanges之前的行上暂停代码并检查'B'实体时，它说"EntityState = Unchanged(2)".

When I pause the code on the line before SaveChanges, and inspect the 'B' entity and it says "EntityState = Unchanged(2)".

我让代码完成运行，最后执行存储过程，该存储过程已映射到"B"实体的Update执行中.

I let the code finish running and I end up with the Store Procedure that is mapped to the 'B' Entity's Update executing.

我希望这不会发生，为什么?

I expected that this would not happen, why is it?

谢谢戈德

EF 4.0.30319

EF 4.0.30319

推荐答案

我怀疑这个问题是那个问题的重复.

要重复给出的答案:

这是在以下情况下发生的问题:

That is an issue that happens when:

• .NET Framework 4.0版上的运行实体框架；
• 使用自定义映射SQL代码；

可以通过3种方法之一解决此问题:

The issue can be fixed in 1 of 3 ways:

• 从Microsoft获取并部署 MS KB 2390624 中描述的修补程序-该请求需要付费Microsoft的协助(例如通过公司支持合同)；
• 升级到.NET 4.5(如果您不必再担心Windows XP，则只能选择此选项)；
• 升级到Entity Framework 6(目前处于beta版，但我希望它不会出现该错误)；

• Get and deploy the hotfix from Microsoft described on MS KB 2390624 - that request requires paid assistance from Microsoft (e.g. through a company support contract);
• Upgrade to .NET 4.5 (only an option if you do not have to worry about Windows XP anymore);
• Upgrade to Entity Framework 6 (currently in beta, but I would expect it to not exhibit that bug);

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