更改现有的IQueryable＆所述的ObjectContext中;＆GT; [英] Changing the ObjectContext of an existing IQueryable<>

问题描述

我有得到我想要的一些插件（计数，分页）在不同的线程执行查询的方法。

I have a method that gets a query that I want to execute with some addons (count, paging) on different threads.

该方法可以得到不同的查询返回相同的的IQueryable＆LT; someEntity＆GT;

The method can get different queries that returns the same IQueryable<someEntity>.

有没有一种方法来创建一个EF查询和设置的ObjectContext它以后呢？

Is there a way to create an EF query and set the ObjectContext to it later ?

感谢。

推荐答案

这是不可能的。 IQueryable的（和的ObjectQuery）是依赖于创建它的上下文。作为一种变通方法，您可以使用包含您的查询，返回的IQueryable并接受上下文参数自定义静态方法。同样priciple之后是pre编译查询，这是上下文无关。

It is not possible. IQueryable (and ObjectQuery) is dependent on context which created it. As a workaround you can use custom static method containing your query, returning IQueryable and accepting context as parameter. The same priciple is followed by pre-compiled queries which are context independent.

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