The TextAlignment property is used to align labels on the chart or by Y axis. The full path to this property is Area.Axis.Labels.TextAlignment. If the TextAlignment property set to Left, then labels are aligned by the chart edge. The picture below shows an example of a chart with the TextAlignment property set to Left:

If the TextAlignment property set to Right, then the labels are aligned by the Y axis. The picture below shows an example of a chart with the TextAlignment property set to Right:

By default, the TextAlignment property is set to Right.