A collection of PopMenuItems. Items within this collection are all derived from PopMenuItemBase. The type of element returned must be inspected at runtime to determine the exact class.

Autodesk.AutoCAD.Customization.CustomizationCollection
    Autodesk.AutoCAD.Customization.PopMenuItemCollection

Public Class PopMenuItemCollection
Inherits CustomizationCollection

public class PopMenuItemCollection : CustomizationCollection;