Hello,

In the Adding UltraDoughnutChart topic in our help documentation, you can find how the example UltraDoughnutChart was created with data.

Once you've created the UltraDoughnutChart and the RingSeries bound to your data, you must then add the series to the UltraDoughnutChart Series collection, like so:

myDoughnutChart.Series.Add(myRingSeries)

You can find working UltraDoughnut VB samples showing how to do this, as well as how to load multiple data sets into one chart, in your Samples Browser under DataVisualization>UltraDoughnutChart.

Please let me know if I can further assist you.