System.Object
   System.EventArgs
      GdPicture14.WPF.ThumbnailEx.FileTypeNotSupportedEventArgs
      GdPicture14.WPF.ThumbnailEx.OnAllItemsLoadedEventArgs
      System.Windows.RoutedEventArgs
         GdPicture14.WPF.BookmarksTree.NodeSelectedEventArgs
         GdPicture14.WPF.GdViewer.AfterDocumentChangeEventArgs
         GdPicture14.WPF.GdViewer.AfterPageRotationEventArgs
         GdPicture14.WPF.GdViewer.AfterPrintPageEventArgs
         GdPicture14.WPF.GdViewer.AnnotationAddedByUserEventArgs
         GdPicture14.WPF.GdViewer.AnnotationClickedEventArgs
         GdPicture14.WPF.GdViewer.AnnotationEndEditingTextEventArgs
         GdPicture14.WPF.GdViewer.AnnotationMovedEventArgs
         GdPicture14.WPF.GdViewer.AnnotationResizedEventArgs
         GdPicture14.WPF.GdViewer.AnnotationRotatedEventArgs
         GdPicture14.WPF.GdViewer.AnnotationSelectedEventArgs
         GdPicture14.WPF.GdViewer.AnnotationStartEditingTextEventArgs
         GdPicture14.WPF.GdViewer.BeforeAnnotationAddedByUserEventArgs
         GdPicture14.WPF.GdViewer.BeforeDocumentChangeEventArgs
         GdPicture14.WPF.GdViewer.BeforePageRotationEventArgs
         GdPicture14.WPF.GdViewer.BeforePrintPageEventArgs
         GdPicture14.WPF.GdViewer.ClickMenuEventArgs
         GdPicture14.WPF.GdViewer.DataReceivedEventArgs
         GdPicture14.WPF.GdViewer.DocumentClosedEventArgs
         GdPicture14.WPF.GdViewer.DropFileEventArgs
         GdPicture14.WPF.GdViewer.PageChangedEventArgs
         GdPicture14.WPF.GdViewer.PageDisplayedEventArgs
         GdPicture14.WPF.GdViewer.PdfFileNavigationEventArgs
         GdPicture14.WPF.GdViewer.PdfLaunchActionEventArgs
         GdPicture14.WPF.GdViewer.PdfPasswordRequestEventArgs
         GdPicture14.WPF.GdViewer.PdfUriNavigationEventArgs
         GdPicture14.WPF.GdViewer.RectEditedEventArgs
         GdPicture14.WPF.GdViewer.RegionEditedEventArgs
         GdPicture14.WPF.GdViewer.RegionSelectedEventArgs
         GdPicture14.WPF.GdViewer.SavingProgressEventArgs
         GdPicture14.WPF.GdViewer.ScrollEventArgs
         GdPicture14.WPF.GdViewer.TransferEndedEventArgs
         GdPicture14.WPF.GdViewer.ZoomChangedEventArgs
         GdPicture14.WPF.ThumbnailEx.ItemCheckedEventArgs
         GdPicture14.WPF.ThumbnailEx.ItemClickedEventArgs
         GdPicture14.WPF.ThumbnailEx.ItemDoubleClickedEventArgs
         GdPicture14.WPF.ThumbnailEx.ItemMovedEventArgs
         GdPicture14.WPF.ThumbnailEx.ItemSelectionChangedEventArgs
         GdPicture14.WPF.ThumbnailEx.ScrollEventArgs
   System.Windows.Threading.DispatcherObject
      System.Windows.DependencyObject
         System.Windows.Media.Visual
            System.Windows.UIElement
               System.Windows.FrameworkElement
                  System.Windows.Controls.Control
                     GdPicture14.WPF.BookmarksTree
                     GdPicture14.WPF.GdViewer
                     GdPicture14.WPF.ThumbnailEx
                     System.Windows.Controls.ItemsControl
                        System.Windows.Controls.TreeView
                           GdPicture14.WPF.BookmarksTree.TreeViewExWPF

Reference

GdPicture.NET.14 Assembly