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I’m using the CategoryDateTimeAxis as a xaxis of one chart.

The picture below is my question, can you give some suggestions?


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Hi there,

Yes, you can do this. What you’ll need to do is:

  1. Subscribe to XAxis.VisibleRangeChanged, or, in MVVM listen to changes of the bound XAxis.VisibleRange property
  2. When the XAxis.VisibleRange.Min == 0 then you are basically at the left edge. Now you need to asynchronously load your data
  3. InsertRange the loaded (older) data into a DataSeries

This should work… Would you like to try it and let me know the results?

Best regards,

  • Shawn Li
    Thank you so much:) I tried as you said, now I can dynamically load my data to the chart.
  • Franco Maestrelli
    Superb! I love it when a plan comes together
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