public class HiddenColumnsCollection : Infragistics.Collections.CollectionBase<Column>, Infragistics.ICollectionBase, Infragistics.ICollectionBase<Column>
'宣言 Public Class HiddenColumnsCollection Inherits Infragistics.Collections.CollectionBase(Of Column) Implements Infragistics.ICollectionBase, Infragistics.ICollectionBase(Of Column)