void ReleaseDesignerOutlets()
        {
            if (outlineView != null)
            {
                outlineView.Dispose();
                outlineView = null;
            }

            if (addItemMenu != null)
            {
                addItemMenu.Dispose();
                addItemMenu = null;
            }
        }
 public WorkbookOutlineViewDelegate(CollectionOutlineView outlineView) : base(outlineView)
 {
 }