'宣言 Public MustInherit Class ComboEditorBase (Of T As ComboEditorItemBase(Of TControl), TControl As FrameworkElement) Inherits System.Windows.Controls.Control Implements Infragistics.IProvideDataItems(Of T), Infragistics.IProvidePropertyPersistenceSettings
public abstract class ComboEditorBase<T,TControl> : System.Windows.Controls.Control, Infragistics.IProvideDataItems<T>, Infragistics.IProvidePropertyPersistenceSettings where T: ComboEditorItemBase<TControl> where TControl: FrameworkElement