一个项目中有多个edmx [英] Multiple edmx in one project
问题描述
我有一个带有一个edmx文件的项目。测试类正常工作。当我添加具有不同名称和名称空间的edmx,但连接到类似的基本结构时,在添加之后,在代理类停止工作之前,我得到以下消息:
I have a project with one edmx file. Test class works correctly.when i add the edmx with a different name and namespace, but connect to a similar base structure ,After the addition, before acting classes stops working and I get the message:
Mapping and metadata information could not be found for EntityType
(InvalidOperationException)
一旦我删除添加的edmx,该项目就可以正常工作。是否可以将两个edmx文件添加到一个项目中,以免出现对元数据的错误引用?
Once i delete the added edmx, the project is working properly.Is there a possibility of adding two edmx files to a single project, so as not to appear to be erroneous references to the metadata?
当前我使用此连接字符串:
<add name="MSSQLEntities" connectionString="metadata=res://*/RiskEntityModel.csdl|res://*/RiskModelLibrary.Lib.RiskEntityModel.MSSQL.ssdl|res://*/RiskEntityModel.msl;provider=System.Data.SqlClient;provider connection string="Data Source=_DBSERVERNAME_;User ID=_DBUSERNAME_;Password=_DBPASSWORD_;Initial Catalog=_DBPATH_;Trusted_Connection=False;MultipleActiveResultSets=True"" providerName="System.Data.EntityClient" />
推荐答案
您必须构造 EntityConnectionDescription
并将其传递给 ObjectContext
的自定义实现。
You've got to construct EntityConnectionDescription
manually and pass it to your custom implementation of ObjectContext
.
基本上而不是标准的EF上下文构建功能(可从应用程序配置读取),而是您自己创建的。
So basically instead of standard EF context-buildup functionality (which reads from app config) you create your own.
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