ProgressData - Progress bar data

In order to display the progress bar properly, data can be provided in the progress bare data instance (ProgressData). Some of the values passed are used for initialization, only. Others are used for displaying the progress. Progress data always reached from 0 to a defined maximum value.

In order to initialize, display and terminate progress information display, an appropriate action has to be set in the action attribute. Depending on the action, other values are evaluated.