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