'宣言 Public Class SelectedDiagramItemCollection Inherits Infragistics.Controls.SelectedCollectionBase(Of DiagramItem) Implements Infragistics.ICollectionBase, Infragistics.ICollectionBase(Of DiagramItem)
public class SelectedDiagramItemCollection : Infragistics.Controls.SelectedCollectionBase<DiagramItem>, Infragistics.ICollectionBase, Infragistics.ICollectionBase<DiagramItem>