so that Y increases as you move down the screen. (Even) microsoft chart component supports this.
The issue is duplicated with feedback item ADD. RadChartView - Add the ability to inverse the order of the values on ordered chart axes. You can track its progress, subscribe for status changes and add your vote/comment to it on the following link http://feedback.telerik.com/Project/154/Feedback/Details/110554-add-radchartview-add-the-ability-to-inverse-the-order-of-the-values-on-ordered