Question

I would like to prevent my program from dropping the database each time I run the debugger during the developing stage. I want to do this without the usual seeding the database. Since I will be using the Import and Export Data wizard, I would like to use this method of populating my database.

Is there a method to prevent the program from dropping the database?

Here’s more information that I hope will help:

My Initializer

DropCreateDatabaseIfModelChanges<SchoolInDB>
{

    protected override void Seed(SchoolInDB context)
    {

        context.Parents.Add(new Parent { Name = "Mary Lawson", Phone = "949-999-9999", Notes = "Please see IEP " });


        base.Seed(context);


    }

}

My application start

protected void Application_Start()
    {
     System.Data.Entity.Database.SetInitializer(new System.Data.Entity.DropCreateDatabaseAlways<SchoolIn.Models.SchoolInDB>()); 

        AreaRegistration.RegisterAllAreas();
        RegisterGlobalFilters(GlobalFilters.Filters);
        RegisterRoutes(RouteTable.Routes);
    }

My DBContext

public class SchoolInDB : DbContext
{
    public DbSet<Course> Courses { get; set; }
    public DbSet<Teacher> Teachers { get; set; }
    public DbSet<Parent> Parents { get; set; }
    public DbSet<PdfReport> PdfReports { get; set; }
    public DbSet<CourseProgress> CourseProgresses { get; set; }
    public DbSet<ParentContact> ParentContacts { get; set; }
    public DbSet<RedAlert> RedAlerts { get; set; }
    public DbSet<Student> Students { get; set; }
    public DbSet<Assignment> Assignments { get; set; }


}

My connection string

<connectionStrings>
<add name="ApplicationServices"
    connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true"
    providerName="System.Data.SqlClient" />

I guess I want to avoid using the SetInitializer to DropCreateDatabaseAlways and just load the database whether the models changes or not. I’ll be using the Import and Export Wizard to populate the database.

Thanks for helping!

Answer 1

I guess I want to avoid using the SetInitializer to DropCreateDatabaseAlways and just load the database whether the models changes or not. I’ll be using the Import and Export Wizard to populate the database

So don’t call SetInitializer. Just use the connection string to open the DB. BTW, DropCreateDatabaseIfModelChanges as the name implies, only drops/creates the DB when the schema changes.

That’s how traditional DB first works.