'宣言 Public MustInherit Class PivotSelectedCollectionBase(Of T As IPivotSelectableItem) Inherits Infragistics.Collections.CollectionBase(Of T) Implements Infragistics.ICollectionBase, Infragistics.ICollectionBase(Of T)
public abstract class PivotSelectedCollectionBase<T> : Infragistics.Collections.CollectionBase<T>, Infragistics.ICollectionBase, Infragistics.ICollectionBase<T> where T: IPivotSelectableItem