This property controls the presence of data scroller bars on the series in a graph. This property can be used for all 2D graphs. It is not applicable for 3D graphs. When the number of viewable series is set to a value less than the number of series in the data set, the scroller bar can be used to change the first series in the graph that is displayed (that is, it effectively changes the value assigned to ScrollOffsetSeries). The data scroller bar consists of two segments: 1) a segment that can be used to click and drag to the first series to be displayed and 2) a status bar that shows the number of the first series (for example, the ScrollOffsetSeries value), the total number of viewable series, and the remaining number of series in the data set. In the first segment, the darker, movable thumb can be dragged to change the series offset. In the second segment, the total of the three numbers indicates the total number of series defined in the data set. For example, the status area of the scroll bar displays "2 3 1". These numbers indicate that ScrollOffsetSeries is "2", ViewableSeries is "3", there is "1" series in the data set that is not displayed, and there are a total of six series defined in the data set. The user can click on these numbers and edit them with the arrow keys.
value = getDataScrollerPresenceSeries();
Can be one of the following:
0 to never display data scroller bar. 0 is the default value.
1 to only display data scroller bar when ViewableSeries is greater than zero.
2 to always display data scroller bar.
See DataScrollerPresenceGroups, ScrollOffsetSeries, ViewableSeries.