Copy Constructor Update

Stumbled upon a problem today and understood that I was not implementing the copy constructor properly.
Actually, in my post "Copy Constructor" I wrote:

For the List type, for example, the following approach would work:

class Customer  
{  
    private List names;  
  
    // Copy constructor.  
    public Customer(Customer previousCustomer)  
    {  
        names = new List(previousCustomer.names.ToArray());  
    }  
  
    ...  
}

This is not true for the list of reference type objects.

The workaround I use now is to implement a copy constructor in the reference type and create a copy of the list in the following manner:

class Customer  
{  
    private List customerIDs;  
  
    // Copy constructor.  
    public Customer(Customer previousCustomer)  
    {  
       customerIDs = new List();
       foreach(ID id in previousCustomer.customerIDs)
       {
         customerIDs.Add(new ID(id));
       }
    }  
  
    ...  
}

The syntax could be a lot more elegant in 3.5, but this application uses the 2.0 framework.

by Evgeny. Also posted on my website