blocks|key|442017|text|当我从EF+5升级到EF+6时，我刚刚完成了这个练习，我也犯了同样的错误。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|442018|这是我必须做的。|442019|Install-Package+Microsoft.AspNet.EntityDataSource|code-block|syntax|javascript|442020|它将在页面下面的EntityDataSource中注册一个新的web.config控件：|442021|<pages>
++<controls>
++++<add+tagPrefix="ef"+assembly="Microsoft.AspNet.EntityDataSource"+namespace="Microsoft.AspNet.EntityDataSource"+/>
++</controls>
</pages>|442022|下一步是在aspx页面中将现有的<asp:EntityDataSource+/>控件替换为<ef:EntityDataSource+/>。|offset|length|style|CODE|442023|最后一步是在代码后面更新EntityDataSourceContextCreatingEventArgs或任何其他类型的EFContext标记的引用。|442024|从…|442025|protected+void+OnContextCreating(object+sender,+EntityDataSourceContextCreatingEventArgs+e){...+}+|442026|至|442027|protected+void+OnContextCreating(object+sender,+Microsoft.AspNet.EntityDataSource.EntityDataSourceContextCreatingEventArgs+e){...+}+|442028|这一切都奏效了，我不必在程序集中引用System.Data.Entity。|442029|entityMap^0|0|0|0|0|0|G|O|19|N|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|17|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|18|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|19|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|1A|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|1B|8|@$O|1C|P|1D|Q|R]|$O|1E|P|1F|Q|R]]|9|@]|A|$]]|$1|S|3|T|5|6|7|1G|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|1H|8|@]|9|@]|A|$]]|$1|W|3|X|5|F|7|1I|8|@]|9|@]|A|$G|H]]|$1|Y|3|Z|5|6|7|1J|8|@]|9|@]|A|$]]|$1|10|3|11|5|F|7|1K|8|@]|9|@]|A|$G|H]]|$1|12|3|13|5|6|7|1L|8|@]|9|@]|A|$]]|$1|14|3|-4|5|6|7|1M|8|@]|9|@]|A|$]]]|15|$]]

I just went through this exercise when upgrading to EF 6 from EF 5 and I had the same errors.

Here is what I had to do.

<pre><code>Install-Package Microsoft.AspNet.EntityDataSource
</code></pre>

It would register a new EntityDataSource Control in the web.config under pages:

<pre><code>&lt;pages&gt;
 &lt;controls&gt;
 &lt;add tagPrefix="ef" assembly="Microsoft.AspNet.EntityDataSource" namespace="Microsoft.AspNet.EntityDataSource" /&gt;
 &lt;/controls&gt;
&lt;/pages&gt;
</code></pre>

Next step is to replace existing <code>&lt;asp:EntityDataSource /&gt;</code> controls to <code>&lt;ef:EntityDataSource /&gt;</code> in your aspx pages.

Final step is to go in your code behind and update references for EntityDataSourceContextCreatingEventArgs or any other type of EFContext tags.

From

<pre><code>protected void OnContextCreating(object sender, EntityDataSourceContextCreatingEventArgs e){... } 
</code></pre>

To

<pre><code>protected void OnContextCreating(object sender, Microsoft.AspNet.EntityDataSource.EntityDataSourceContextCreatingEventArgs e){... } 
</code></pre>

It all worked and I didn't have to reference System.Data.Entity in the assembly.

blocks|key|1729913|text|根据IDE提供的建议，我们可以转到NuGet包控制台并运行以下命令来安装新的实体框架数据源：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1729914|Install-Package+Microsoft.AspNet.EntityDataSource|code-block|syntax|javascript|1729915|另外，添加以下包(如这文章中所述)：|offset|length|1729916|Install-Package+Microsoft.AspNet.DynamicData.EFProvider|1729917|entityMap|0|LINK|mutability|MUTABLE|url|https://devblogs.microsoft.com/aspnet/announcing-the-release-of-dynamic-data-provider-and-entitydatasource-control-for-entity-framework-6/^0|0|0|A|1|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@$I|X|J|Y|1|Z]]|A|$]]|$1|K|3|L|5|D|7|10|8|@]|9|@]|A|$E|F]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

As per the suggestions given by the IDE, we can go to the NuGet Package Console and run the following command to install the new Entity Framework data source:

<pre><code>Install-Package Microsoft.AspNet.EntityDataSource
</code></pre>

Also, add the following package (as referred in <a href="https://devblogs.microsoft.com/aspnet/announcing-the-release-of-dynamic-data-provider-and-entitydatasource-control-for-entity-framework-6/" rel="nofollow noreferrer">this</a> article):

<pre><code>Install-Package Microsoft.AspNet.DynamicData.EFProvider
</code></pre>

I recently upgraded our Webforms application from EF 4.4 to EF6 and I got so many compile time build errors with the Entity Datasource controls. Generally I am getting these error in all occurrences when trying to access the context object :

<pre><code>e.Context
</code></pre>

I have followed the same walkthrough as given in : <a href="http://entityframework.codeplex.com/wikipage?title=Updating%20Applications%20to%20use%20EF6" rel="noreferrer">http://entityframework.codeplex.com/wikipage?title=Updating%20Applications%20to%20use%20EF6</a>

The error information which is showing up is:

<blockquote>
 1) Module System.Data.Entity. version="4.0.0.0" should be referenced
 
 2) Cannot case expression of type System.Data.Objects.ObjectContext to
 type ObjectContext (After explicitly type casting to System.Data.Entity.Core.Objects.ObjectContext)
</blockquote>

Can anybody help to fix this?

Entity DataSource not working with Entity Framework 6 Upgrade

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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最近，我将Webforms应用程序从EF4.4升级到了EF6，使用实体Datasource控件获得了太多编译时构建错误。通常，在尝试访问上下文对象时，都会遇到这些错误：e.Context我遵循了与以下内容相同的演练：正在显示的错误信息是：1)模块System.Data.Entity。应该引用version="4.0.0...

问实体DataSource不使用实体框架6升级
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