错误：v6.1.3（& v6.1.2）：延迟LINQ执行（/多语句）错误 [英] Bug: v6.1.3 (& v6.1.2): Deferred LINQ execution (/multi-statement) bug

问题描述

Guys& Gals，除非我不理解EF工作/应该如何工作的微妙之处，当你在单独的C＃-statements中分解LINQ查询时，你似乎有v6.1.3的错误;例如这是有效的：
$


            var fullQry =

                dbCtx.BldAs.AsNoTracking（）。ToList（）;

Guys & Gals, unless I don't understand a subtlety of how EF works/should work, you seem to have a bug with v6.1.3, when breaking-up LINQ queries across separate C#-statements; e.g. this works:

            var fullQry =
                dbCtx.BldAs.AsNoTracking().ToList();

但这会引发异常：

But this throws an exception:

            var qry =

                （IQueryable< BldA>）dbCtx.BldAs;

            var qry =
                (IQueryable<BldA>)dbCtx.BldAs;

推荐答案

您好Deanus1，

Hi Deanus1,

根据您的描述，我遇到类似问题，似乎是一个实体框架6.1.3问题，我可以建议你可以将你的实体框架版本升级到6.2.0。这是实体框架中最重要的变化
6.2.0。

According to your description, I have encounter the similar issue, it seems that is a entity framework 6.1.3 issue, I could suggest that you could upgrade your entity framework version to 6.2.0. Here is the most important changes in entity framework 6.2.0.

https://blogs.msdn.microsoft.com/dotnet/2017/10/26/entity-framework-6-2-runtime-released/

此外，实体框架一直是开源的。您可以从以下链接查看相关的源代码。

In addition, entity framework have been open source. you could check related source code from the following link.

https://github.com/aspnet / entityframework6 /

祝你好运，

张龙

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