DbContext和ObjectContext有什么区别？ [英] What's the difference between DbContext and ObjectContext

问题描述

从 MSDN ：

表示Unit-工作和资源库模式，使您能够查询数据库并将更改组合在一起，然后将其作为一个单位写回商店。 DbContext 在概念上类似于 ObjectContext 。

我虽然 DbContext 仅处理与DB的连接和针对数据库的线程数。

I though DbContext only handle the connection to the DB and the number of threads working against the DB.

现在我明白它包含了跟踪机制？我以为这是在 ObjectContext 中。

Now I understand it contains the tracking mechanism? I thought this was in the ObjectContext.

那么什么是（简单的英语）他们之间的区别？ / p>

So what is (in plain English) the difference between them?

推荐答案

DbContext是一个轻量级的ObjectContext类，它几乎位于ObjectContext之上（甚至有一种方法从DbContext得到ObjectContext）。使用更容易的IMO，并使CRUD操作变得更加简单。

DbContext is a lightweight version of the ObjectContext class, which is laid almost right on top of ObjectContext (there is even a way to get to the ObjectContext from just the DbContext). It's also a lot easier to use, IMO, and makes CRUD operations a sinch.

为了更好的信息，比 Julie Lerman 有关差异的更多信息，如带入EF 4.1。

For better information, who better to look to than Julie Lerman for more info on the differences, as was brought into EF 4.1.

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