Question

I’m having problems trying to get my database to seed with entity framework / code first. I’m a beginner at .NET and I’ve tried numerous of solutions but none of them worked for me.

What am I doing wrong? I’m posting the most relevant code… Any help would be greatly appreciated.

SampleData.cs

    namespace seed2.Models
{
    public class SampleData : DropCreateDatabaseAlways<AirplaneDB>
    {
        protected override void Seed(AirplaneDB context)
        {
            var airplane = new List<Airplane>()
            {
                new Airplane { AirplaneId = 1, Make = "Great Planes"},
                new Airplane { AirplaneId = 2, Make = "Eflite"}
            };
            base.Seed(context);
        }

    }
}

Web.Config

<add name="AirplaneDB"
     connectionString="data source=|DataDirectory|Airplanes.sdf"
     providerName="System.Data.SqlServerCe.4.0"/>

AirplaneDB.cs (Context)

public class AirplaneDB : DbContext
{
    public DbSet<Airplane> Airplanes { get; set; }
}

Airplane.cs

public class Airplane
{
    public int AirplaneId { get; set; }
    public string Make { get; set; }
}

Answer 1

First, add this to the Application_Start() method of Global.asax.cs:

System.Data.Entity.Database.SetInitializer(new seed2.Models.SampleData());

Make sure you are actually refreshing the view in the browser. Re-building the solution doesn’t seed the database.

Finally, you should add airplane.ForEach(x => context.Airplanes.Add(x)); and remove base.Seed(context) in your seed method.