Question

I am trying to make a abstract ObservableCollection class which requires its members to implement an interface IXMLEntity I also want the abstract class to implement this interface also — the reasoning is that the Collection could then be XMLSerialized, and include all its children.

public abstract class BaseCollectionModel<T> : ObservableCollection<T>
    where T : IXMLEntity
{

}

How should I do this? I am just starting a new library for my project so any other design patterns are up for suggestions.

I plan on making BaseCollectionModel a class which is able to provide ‘infinite scrolling’ by making service calls for more items as necessary.

Answer 1

Have you tried the usual way?

public abstract class BaseCollectionModel<T> : ObservableCollection<T>, IXMLEntity
where T : IXMLEntity
{

}