If you mean our FirstLook example:
In this example, the first slider RadSlider1 is used to change the CalendarView to: MonthView,YearView,DecadeView and CenturyView.
The second slider Radslider2 is used to control the displayed days in the calendar only when the calendar mode is set to MonthView.
If you need some Chart functionality you can use RadChart. In a few weeks we will launch Q1 release and you will find a full set of examples with charts.
All the best,
the Telerik team