public abstract class BCCollectionBase<T> : BCCollectionBase, 
	IEnumerable<T>, IEnumerable
where T : DisposableObject

Public MustInherit Class BCCollectionBase(Of T As DisposableObject)
	Inherits BCCollectionBase
	Implements IEnumerable(Of T), IEnumerable

generic<typename T>
where T : DisposableObject
public ref class BCCollectionBase abstract : public BCCollectionBase, 
	IEnumerable<T>, IEnumerable

[<AbstractClassAttribute>]
type BCCollectionBase<'T when 'T : DisposableObject> =  
    class
        inherit BCCollectionBase
        interface IEnumerable<'T>
        interface IEnumerable
    end