Chart for WPF and Silverlight > Chart Features > Data Series > Differences Between DataSeries and XYDataSeries |
DataSeries has only one logical set of data values - Values(y-values).
In this case x-values are generated automatically(0,1,2...), also you can specify text labels for x-axis using Data.ItemNames property.
XYDataSeries has two sets of data values - Values(y-values) and XValues.