One-level rendering mode allows displaying only first-level branches on the screen . By clicking a particular branch, you can get access to the second-level branches related to it. Such an approach lets you save space on the screen, which can be pretty handy in the case of mobile devices.
Thanks to its size and specificity of the structure TreeMap can display a very large number of items on the screen at once.
You can define a template that will be used for showing the titles of the expanded branches in the header of the widget.
Mobile apps developed with TreeMap widget operate on most modern touch devices, like iPad, iPhone, Android, Windows Phone devices.
The widget meets WAI-ARIA requirements: attributes, keyboard navigation, high-contrast skin.