.NET Entity Framework Application Context and Initializer with Seed function example

MyAppContext.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data;
using System.Data.Entity;
using System.Data.Entity.Validation; 
using System.Data.Entity.InfrastMyAppructure;
using System.Configuration;
namespace MyCompany.HR {
    /// <summary>
    /// Summary description for ApplicationContext
    /// </summary>
    public class MyAppContext : DbContext {
        public DbSet<Job> Jobs { get; set; }
        // etc...
        
        public MyAppContext()
            : base("name=MyAppContext") {
            // avoid lazyloading
            //this.Configuration.LazyLoadingEnabled = false;
            //this.Configuration.ProxyCreationEnabled = false;
        }
       
        protected override void OnModelCreating(DbModelBuilder modelBuilder) {
            base.OnModelCreating(modelBuilder);
            modelBuilder.Conventions.Remove<System.Data.Entity.ModelConfiguration.Conventions.PluralizingTableNameConvention>();
            // Add any configuration or mapping stuff here
        }

        /// <summary>
        /// Feed test data
        /// </summary>
        /// <param name="Context"></param>
        public void Seed(MyAppContext Context) {
		// Need something from App_Data?
		// HostingEnvironment.MapPath("~/App_Data/something.csv");
		// add some data
                Context.SaveChanges();   

        }


        public class DropCreateAlwaysInitializer : DropCreateDatabaseAlways<MyAppContext> {
            protected override void Seed(MyAppContext context) {
                context.Seed(context);
                base.Seed(context);
            }
        }
        public class DropCreateIfChangeInitializer : DropCreateDatabaseIfModelChanges<MyAppContext> {
            protected override void Seed(MyAppContext context) {
                context.Seed(context);
                base.Seed(context);
            }
        }

        public class CreateInitializer : CreateDatabaseIfNotExists<MyAppContext> {
            protected override void Seed(MyAppContext context) {
                context.Seed(context);
                base.Seed(context);
            }
        }

        static MyAppContext() {

            /////////////////////////////////////////////////
            //use master
            //ALTER DATABASE MyCompanyHR SET SINGLE_USER WITH ROLLBACK IMMEDIATE 
            //ALTER DATABASE MyCompanyHR SET MULTI_USER
            /////////////////////////////////////////////////
//#if DEBUG
//            Database.SetInitializer<ApplicationContext> (new DropCreateIfChangeInitializer ());
//#else
//            Database.SetInitializer<ApplicationContext>(new CreateInitializer());
//#endif

            // Comment out below as you need
            //Database.SetInitializer<MyAppContext>(new CreateInitializer());
            //Database.SetInitializer<MyAppContext>(new DropCreateIfChangeInitializer());
            //Database.SetInitializer<MyAppContext>(null);
            
            if (ConfigurationManager.AppSettings["FORCE_INIT"] == "YES")
            {
                Database.SetInitializer<MyAppContext>(new DropCreateAlwaysInitializer());
            }

        }
    }
}