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[英]EF6 - No connection string named 'Data Source=…' could be found in the application config file
[英]No connection string could be found in the application config file - EF6
错误:
No connection string named 'MediaRentalEntities' could be found in the application config file.
我的配置文件:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8" />
</startup>
<entityFramework>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
<connectionStrings>
<add name="MediaRentalEntities" connectionString="metadata=res://*/Model1.csdl|res://*/Model1.ssdl|res://*/Model1.msl;provider=System.Data.SqlClient;provider connection string="data source=localhost;initial catalog=MediaRental;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
</connectionStrings>
</configuration>
如您所见,连接字符串清晰可见,它是自动生成的。 我可以运行该程序,但它不断在错误列表中显示此错误,我无法查看设计器。
我发现了类似的问题,但主要是关于多个项目,这里我只有一个解决方案和一个项目。
编辑
DBContext 中的构造函数:
public MediaRentalEntities()
: base("name=MediaRentalEntities")
{
}
将您的构造函数更改为
public MediaRentalEntities()
: base("MediaRentalEntities")
{}
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