Question

I’m trying to use Entity Framework 5 Code First.
I’ve created model classes and context.

After that following Microsoft instructions I’ve enabled code migrations.

Than I skipped running my application (during which DB should be created first time) and use Add-Migration command. Migration was generated successfully.

Update-Database call was also successfull. But I’m not seeing my DB at all. It is absent!

SQL Management Studio and Visual Studio Server Explorer show only 4 default system databases and that’s all!
I also tried to launch my application – it doesn’t change anything.
I’m using

public MyContext() : base("name=MyContext") { }

such type of constructor (so I need specify connection string with MyContext name.
Here is my app.config example:

<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=5.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
    </configSections>
    <entityFramework>
      <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
        <parameters>
          <parameter value="v11.0" />
        </parameters>
      </defaultConnectionFactory>
    </entityFramework>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
    </startup>
    <connectionStrings>
      <add name="BettyContext" providerName="System.Data.SqlServerCe.4.0" connectionString="Data Source=MyDB.sdf"/>
    </connectionStrings>
</configuration>

I have no idea what’s going on. Seems that no one has such problem. May be I’ve missed some evident thing, but howbeit I’m waiting for some help.

Answer 1

Do you see an exception? If you don’t see an exception you probably are not looking at the right database. You can try adding some data to the database with your app and then read it. If the data can be successfully added and read and you still don’t see the database it would confirm that you are looking at wrong database.