Thank you for contacting us.
If I understand correctly, you want to display DataTime values on the vertical axis. If you set the vertical axis to DateTimeContinuousAxis and the horizontal to LinearAxis, the chart will display the data horizontally instead of vertically. This is the expected behavior since almost always the values for the data are numerical.
Note that you also need to add data points with the data you want to display. For example:
BarSeries barSeries = new BarSeries();
CategoricalDataPoint point = new CategoricalDataPoint();
point.Category = DateTime.Parse("2012-12-4");
point.Value = 1.2;
If, however this is not what you want, I would kindly like to ask you to share some further details on your scenario so I could assist you further.
the Telerik team
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