Inheritance: FragmentRootControlProvider, IScrollBehaviorSubject
 public PrintPreviewControlScrollBarProvider(SWF.ScrollBar scrollbar,
                                             PrintPreviewControlProvider provider)
     : base(scrollbar)
 {
     this.provider = provider;
     name          = scrollbar is SWF.HScrollBar ? "Horizontal Scroll Bar" : "Vertical Scroll Bar";
 }
			public PrintPreviewControlScrollBarProvider (SWF.ScrollBar scrollbar,
			                                             PrintPreviewControlProvider provider)
				: base (scrollbar)
			{
				this.provider = provider;
				name = scrollbar is SWF.HScrollBar ? "Horizontal Scroll Bar" : "Vertical Scroll Bar";
			}