Hi Joseph,
Yes, we could rotate the chart as you require.
The chart Area is rotated using the ChartArea.RenderTransform. And the labels are rotated accordingly with the chartAxis LabelRotateAngle property.
Please refer to the attached sample that illustrates this behaviour.
http://websamples.syncfusion.com/samples/WPF/F78264/main.htmPlease let me know if you if you have further queries.
Thanks.