System.Object
   OPCDA.NET.BGBrowseTree
   OPCDA.NET.BGCore
   OPCDA.NET.BGDataBind
   OPCDA.NET.BGGroup
   OPCDA.NET.BGServer
   OPCDA.NET.BrowseElement
   OPCDA.NET.BrowseNodeInfo
   OPCDA.NET.BrowseTree
   OPCDA.NET.DataBindEventData
   OPCDA.NET.DataBindFormat
   OPCDA.NET.ItemDefinition
   OPCDA.NET.ItemList
   OPCDA.NET.ItemListLoader
   OPCDA.NET.ItemLists
   OPCDA.NET.OpcDataBind
   OPCDA.NET.OpcGroup
   OPCDA.NET.OpcServer
   OPCDA.NET.RefreshEventArguments
   OPCDA.NET.ShowBrowseTree
   OPCDA.NET.ShowBrowseTreeList
   OPCDA.NET.Subscription
   OPCDA.NET.SyncIOGroup
      OPCDA.NET.RefreshGroup
   OPCDA.NET.tlNodeInfo
   OPCDA.NET.XmlIO
   System.EventArgs
      OPCDA.NET.ShutdownRequestEventArgs
   System.Exception
      OPCDA.NET.BGException
   System.MarshalByRefObject
      System.ComponentModel.Component
         System.Windows.Forms.Control
            System.Windows.Forms.ScrollableControl
               System.Windows.Forms.ContainerControl
                  System.Windows.Forms.Form
                     OPCDA.NET.Images

Reference

OpcDaNetUA.Net4 Assembly