EDABlog

I will talk about Windows Communication Foundation collections in the next post and wanted to get this out of the way ; I'm always lost when creating a simple collection whether to contain a collection as a member or whether to extens a base one via in extion

eg

public  class Customers<Customer> or  Customers :  Collection < Customer> { ..}

vs

public  class Customers  ; ICollection<Customer>

{  private List<Customer>  customers ; //Add etc  }

While the second is  obviously better as you can hide elements i dont think its good use of time to implement each such collection unless the collection requires significant extentions anyaway.  A good example is a collection with indexes

public  class Customers  ; ICollection<Customer>

{

Dictionary<Customer,int> customers;

Dictionary<Customer,string> customerByNameIndex;

Dictionary<Customer,string> customerByCityIndex;

}