Customizing Chart Elements > Alarm Zones |
AlarmZones are a series of bands that can be placed behind the plotted data, but in front of the chart background. Generally, they are used in much the same manner as grid lines, but because of the ability to modify the alarm zones, tend to be more visually appealing. By using the UpperExtent and LowerExtent properties, you are able to adjust each alarm zone band to specific values.
Note: Alarm zones are most effectively used with plot, bar, stacking bar and candle charts.