Entity Framework Auto Migration - asp.net-mvc

Question

Hi I am learning to develop project using code first approach. I am facing a small problem that when i run the command Add-Migration its not identifying the changes even i have enables the AutomaticMigrationsEnabled in config file
here is my code
----------------------------- DbContext file
using System.Data.Entity;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace EntityCodeFirstSample.DataBaseFiles
{
class EntityCodeFirstSampleContext : DbContext
{
public EntityCodeFirstSampleContext()
: base("name=DbConnectionString")
{
Database.SetInitializer(new MigrateDatabaseToLatestVersion<EntityCodeFirstSampleContext, EntityCodeFirstSample.Migrations.Configuration>("DbConnectionString"));
}
public DbSet<Publisher> Publishers { get; set; }
public DbSet<Book> Books { get; set; }
public DbSet<Sample> Samples { get; set; }
public DbSet<Venkat> Venkats { get; set; }
}
}
----------------- Configurations file ---------------------------------
namespace EntityCodeFirstSample.Migrations
{
internal sealed class Configuration : DbMigrationsConfiguration<EntityCodeFirstSample.DataBaseFiles.EntityCodeFirstSampleContext>
{
public Configuration()
{
AutomaticMigrationsEnabled = true;
AutomaticMigrationDataLossAllowed = true;
}
protected override void Seed(EntityCodeFirstSample.DataBaseFiles.EntityCodeFirstSampleContext context)
{
}
}
}
------------------------------------------- Model File ---------------------
namespace EntityCodeFirstSample.DataBaseFiles
{
[Table("Venkat")]
public class Venkat
{
[Key]
[DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)]
public int UserId { get; set; }
public string UserName { get; set; }
public int NotaryCode { get; set; }
}
}
After running the command Add-Migration VenkatClass it is generating the migration file as below
namespace EntityCodeFirstSample.Migrations
{
using System;
using System.Data.Entity.Migrations;
public partial class VenkatClass : DbMigration
{
public override void Up()
{
}
public override void Down()
{
}
}
}

Answer 1

when AutomaticMigrationsEnabled = true then you don't have to add Migration because when you will execute your program the EF will look after for any change on the fly and update your database. If you want to control then set the AutomaticMigrationsEnabled = false. Then you should be able to see the difference when Add-Migration is being called.
Please read: https://msdn.microsoft.com/en-us/data/jj554735.aspx
and then read this: https://msdn.microsoft.com/en-us/data/jj591621.aspx
Run:
update-database
Make sure that the project is set default where the connection string is stored.
If it does not return any error then it is all good to go. You should able to see that the update has already occured and your new changes must have reflect already.