The RadTreeMap creates the TreeMapItems from upper-left to lower-right (or left-to-right on horizontal and up-to-down on vertical) from "Largest to Smallest". I have a client that wanted the control to sort by "Smallest to Largest". 

As per http://www.telerik.com/forums/treemap-reverse-treemapitem-order

I was informed that this functionality is not supported. I'd like to request that this be possible. 

Thanks you.

When both Telerik TreeMap and Kendo UI Heatmap are placed on the same page, the Kendo scripts are failing with the following exception:

Uncaught TypeError: Cannot read properties of undefined (reading '0')