The labels data series is of type string and is used to strore the
labels of the data points. The labels can be visualized in the data point
labels, the chart legend and the data point tooltips.
Example
The following code creates a bar chart with labels shown in the data point labels
and the legend.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2