gistfile1.cs

using System;
using System.Linq;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using Northwind.Domain;

namespace Northwind.Domain.Entities 
{ 
   [Serializable]
   public partial class CustomerCustomerDemo : EntityBase<CustomerCustomerDemoCompositeID>   
   {
	  
      public CustomerCustomerDemo() 
      {
         ID = new CustomerCustomerDemoCompositeID();
         Initialize();
      }
	  
	  partial void Initialize();
	     
	  public virtual CustomerDemographic CustomerDemographics 
	  {
	  	get 
	  	{
	  		return ID.CustomerDemographics ;
	  	}
	  	set 
	  	{
	          if( ID.CustomerDemographics != value )
	          {
	  			ID.CustomerDemographics = value;
	  			OnPropertyChanged("CustomerDemographics");
	          }
	  	}
	  }
	  public virtual Customer Customers 
	  {
	  	get 
	  	{
	  		return ID.Customers ;
	  	}
	  	set 
	  	{
	          if( ID.Customers != value )
	          {
	  			ID.Customers = value;
	  			OnPropertyChanged("Customers");
	          }
	  	}
	  }

      
     
   }
}



##########################
using System;

namespace Northwind.Domain.Entities
{
    public class CustomerCustomerDemoCompositeID : BaseCompositeID
    {
        private CustomerDemographic _customerdemographic;
        private Customer _customer;


		public virtual CustomerDemographic CustomerDemographic 
		{
			get 
			{
				return _customerdemographic;
			}
			set 
			{
		        if( _customerdemographic != value )
		        {
					_customerdemographic = value;
					OnPropertyChanged("CustomerDemographic");
				}
			}
		}
		public virtual Customer Customer 
		{
			get 
			{
				return _customer;
			}
			set 
			{
		        if( _customer != value )
		        {
					_customer = value;
					OnPropertyChanged("Customer");
				}
			}
		}

		
		public override bool Equals( object obj )
		{
		    if ( obj == null )
		        return false;
		
		    if ( obj == this )
		        return true;
		
		    CustomerCustomerDemoCompositeID that = obj as CustomerCustomerDemoCompositeID;
		    if ( that == null ) 
				return false;
		    

		    if ( !this.CustomerDemographic.Equals( that.CustomerDemographic ) )
		       return false;

		    if ( !this.Customer.Equals( that.Customer ) )
		       return false;
		
		    return true;
		}
		public override int GetHashCode()
		{
		    return this.CustomerDemographic.GetHashCode()+this.Customer.GetHashCode();
		}
    }
}