Collection of objects with common Abstract base class

Question

I have an abstract class called generic, implemented as follows:

public abstract class generic
{
    public string creatorID { get; set; }
    public string item         


        

Answer 1

To me, this looks like a class factory.

You need a method that takes a DataRow, looks at its fields, and decides which subclass of generic should be created for that row. Then it creates the appropriate object newObj, calls newObj.setParameters(dr), and returns newObj.

Preferably, the actual factory method doesn't take a DataRow, but rather just the one scalar value (int, string, whatever) that indicates the type to be created.

Perhaps the class factory is passed in by dependency injection; you could go simple or elaborate on this.