Entity Framework Not Creating Database

Question

Been playing around with the Code First feature of Entity Framework 4.1 using an ASP.NET MVC 3 project.

However the database (SQL Server 2008 R2) does not automatically

Answer 1

I have the same issue and found a elegant solution: call the SetInitializer in the constructor of your DbContext:

public class MyDbContext : DbContext
{
   protected MyDbContext : this("MyConnection")
   {
       Database.SetInitializer<MyDbContext>(new CreateDatabaseIfNotExists<MyDbContext>());
   }
}

My app setting:

<connectionStrings>
    <add
      name="MyConnection"
      connectionString="Data Source=(LocalDb)\v11.0;AttachDbFilename=|DataDirectory|\MyDB.mdf;Initial Catalog=MyDB;Integrated Security=True"
      providerName="System.Data.SqlClient" />
  </connectionStrings>

Answer 2

Asked around on the MSDN forums instead, and got a satisfactory answer:

Entity Framework will not create a database until first access. The current code block in Application_Start() only specifies the strategy to use when creating the database during first access.

To trigger creation of the database on startup, an instance of the database context must be created, and context.Database.Initialize(true) must be invoked.

Answer 3

I know this was already answered by mazatsushi in the rightest way. But just to clarify it to begginers: Based in mazatsushi's answer what you have to do is to write:

        Database.SetInitializer(new DropCreateDatabaseIfModelChanges<SorteoContext>());
        using (var context = new SorteoContext())
        {
            context.Database.Initialize(force: true);
        }

inside Application_Start() function in Global.asax.cs and Boom! works!