Scratchpad introduction

All session data is maintains in the server scratch pad. The scratch pad is built like an embedded "spreadsheet" and keeps all session data organized into so called "worksheets". Each worksheet is divided into "cells" organized into rows and columns. This makes it an easy task to write applications that populate simple fields as well as tables and lists in the user interface.

Scratchpad worksheets can also be used for binary data like images

Some user interface components can also use worksheet data to control their behavior, such as the game table widget where each row controls one game card.