Real-Time Update Demo
This sample shows you how to optimize the refreshing of individual
cells or summaries when an underlying data source is frequently
changed.
Features:

The sample after execution is illustrated above.
Interactive Features:
- When the Start Timer button is clicked, it starts
a timer that changes the Freight column repeatedly.
- The Grid caches the graphics context between updates and draws only
columns and summaries that were changed using the
GridControlBase.DrawClippedGrid method.