EF在添加实体后，保存时生成两个cs文件，为什么，怎么修改？

Question

EF在添加实体后，保存时生成两个cs文件（mymodel.cs和mymodel1.cs)，为什么，怎么修改？

Answer 1

是不是你在每个程序中都会生成多个CS文件，这个貌似不太可能出现的情况，除非你自己以前有自定化T4模板。

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Alan Chen[MSFT]
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Answer 2

不是的，就这个是这样的，我也感觉很奇怪

Answer 3

不是的，就这个是这样的，我也感觉很奇怪

Answer 4

不是的，就这个是这样的，我也感觉很奇怪

Answer 5

你是在EDMX上添加一个实体就会自动的多一个.cs的文件出来？

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Alan Chen[MSFT]
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Answer 6

在默认的情况下，每次添加一个实体类的时候，这个实体类是将出现在.Designer.cs这个文件，你应该是用了个想要的Code Item 来生成POCO，或者Dbcontext。

请你查看你的Model.tt文件中有没有类似这样的代码：

// Emit Entity Types
foreach (EntityType entity in ItemCollection.GetItems<EntityType>().OrderBy(e => e.Name))
{
    fileManager.StartNewFile(entity.Name + ".cs");
    BeginNamespace(namespaceName, code);
    WriteEntityTypeSerializationInfo(entity, ItemCollection, code, ef);

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Alan Chen[MSFT]
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Answer 7

你是在EDMX上添加一个实体就会自动的多一个.cs的文件出来？

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Alan Chen[MSFT]
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在edmx中做任意修改，即使用文本方式打开加一个空格，重新生成后这就这样了。感觉加了一个实体后mymodel.cs的内容是没有变化的，只是重新生成了mymodel1.cs为什么会这样啊。生成时的名称是在哪里定义的啊？

Answer 8

朋友呀，我完全不懂你的意思，重新生成是指什么？来点截图吧！

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Alan Chen[MSFT]
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Answer 9

朋友呀，我完全不懂你的意思，重新生成是指什么？来点截图吧！

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Alan Chen[MSFT]
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看到了吧，我现在生成的名称是TescommModels1.Designer.cs了，不是TescommModels.Designer.cs