Entity Framework v6 Composite keys Annotation

efv6CompositeKeysDemo.cs

void Main()
{
	string connstr = @"data source=(LocalDb)\MSSQLLocalDB;initial catalog=Northwind;Integrated Security=True;application name=EntityFramework";

	var entity = new NorthwindEntities(connstr);
	var regionInstance = entity.Regions.Take(2).Dump();
	var OrderDetailsInstance = entity.OrderDetails.Take(2).Dump();


}

public class NorthwindEntities : DbContext
{
	public DbSet<Regions> Regions { get; set; }
	public DbSet<OrderDetails> OrderDetails { get; set; }

	public NorthwindEntities()
			: base("name=NorthwindEntities")
	{
	}

	public NorthwindEntities(string nameOrConnectionString) : base(nameOrConnectionString)
	{
	}
}

// Define other methods and classes here
[Table("Region")]
public class Regions
{
	[Key]
	public int RegionID { get; set; }

	public string RegionDescription { get; set; }

}

[Table("Order Details")]
public class OrderDetails
{
  [Key]
  [Column(Order = 1)]
  public int OrderID { get; set; }
  [Key]
  [Column(Order = 2)]
  public int ProductID { get; set; }

  public decimal UnitPrice { get; set; }

	public short Quantity { get; set; }

	public float Discount { get; set; }

}