How can I customize appearance of circle that appears on clicking of line chart data point?
We are using old Infragistics2.Win.UltraWinChart.v10.2 components.
Thank you for contacting Infragistics. You may toggle the visibility of this hot tracking by using the Tooltips.HighlightDataPoint property.
eg. this.ultraChart1.Tooltips.HighlightDataPoint = DefaultableBoolean.True;
However in order to set the color manually you'll need to use the HighlightOutlineColor property.
There is also a few other properties including a fill color.