数据库中实体框架代码优先的默认数据

DropCreateDatabaseIfModelChanges

DropCreateDatabaseAlways

public class EntitiesContextInitializer : DropCreateDatabaseIfModelChanges<-YourDbContext->

protected override void Seed(YourDbContext context)

public class EntitiesContextInitializer : DropCreateDatabaseIfModelChanges<EntitiesContext>
{
    protected override void Seed(EntitiesContext context)
    {
        List<Role> roles = new List<Role>
        {
            new Role {Id=1, Title=\"Admin\"},
            new Role {Id=2, Title=\"ProjectManager\"},
            new Role {Id=3, Title=\"Developer\"}
        };

        // add data into context and save to db
        foreach (Role r in roles)
        {
            context.Roles.Add(r);
        }
        context.SaveChanges();

    }
}

Database.SetInitializer(new EntitiesContextInitializer());

protected void Application_Start()
{
    AreaRegistration.RegisterAllAreas();
    RegisterGlobalFilters(GlobalFilters.Filters);
    RegisterRoutes(RouteTable.Routes);
    Database.SetInitializer(new EntitiesContextInitializer());
}

using System.Data.Entity;

DropCreateDatabaseIfModelChanges

Seed